Things you REALLY don't want a timetraveller to say

[Lakaz]

I'm planning on introducing a time-traveller character to the campaign i'm running at the moment, it's kind of a modified Call Of Cthulhu campaign using a semi-homebrewed pantheon instead of the traditional Great Old ones.
I really want this time traveller to mostly be there to REALLY screw with my players, foreshadowing the really nasty plot developments to come, but i don't want ALL the references he makes to the future he's from to be relevant to the plot or they'll catch on, i need to add a few red herrings. Thing is i'm low on ideas for those red herrings
Which begs the question, what's the worst possible thing a man from the future could say to you? All i've got so far is "I messed up. Everybody died" and even that's lifted from elsewhere. Ideas?

[TriForce]

"OH! so YOU were the one who...... oh nevermind"
"Do NOT take the drink that herbert offers you.... it wont end well"
"wait, arent you supposed to be dead by now?"

[Pex]

"The time-traveler just stare at you for a while, saying nothing."

Player: "What?"

"The time traveler shakes his head then" (talk to another PC).

[Vrock_Summoner]

If player character is involved in committed relationship:

"Oh, you dated my ex-fiance! Hm, what was her name..."

Works better on book characters, but PCs still wonder if it pertains to their current relationship or a previous one. And you never have to bring it up again. Leave him/her constantly wondering. Best-case scenario, his/her overanxiety ends up being the cause of the relationship's end later. So much lulz.

"Oh, my god! Hi... Oh wait, you don't know me yet."

"Huh. I thought that trap was supposed to have made you a lot older than this... Oh, don't mind my mumblings."

"You have an uncanny resemblance to a beggar I know... What's your last name?" After this one is responded to, just snicker and change topics.

[Ravens_cry]

What the bowl of petunias said, in a long suffering tone of voice.

[Vauron]

"OH! so YOU were the one who...... oh nevermind"
"Do NOT take the drink that herbert offers you.... it wont end well"
"wait, arent you supposed to be dead by now?"

"I'm sorry."*
"Your name shall be cursed forever as the greatest monster humanity ever produced."**
"It was the only way."

*You never want to hear this from people who know what will happen, though it might fit better with precogs than time travellers.
**So many player characters fit this.

[Lord Raziere]

"I feel sorry for um.....forget I said anything."

"your still alive!?"

"We haven't met yet. I apologize for past me's actions, just y'know, in advance."

"oh so thats what you look like without....erm, nothing."

"huh. didn't know you had that."

He stares at you with what looks like anger then doesn't talk to you.

"did you receive the call? its kind of important..."

[comicshorse]

"Wow you look different without all the burns "

[The Glyphstone]

"If I kill you now, will it never have happened?"

[Slipperychicken]

[nervously, looking at watch] "Heh, wow, is it that time already? Sorry, but I have to get going, right now. Try to enjoy the next few minutes.. err I mean hours for me, okay?"

[Socksy]

Another one for characters in a relationship: "Grandma! You're so young! And... Who's that?"

What about
* So did you touch that thingy yet?
* To think I'm in the same room as... Wow...
* (If the time traveller has reasonable access to Reincarnation or the like) Did I really look that stupid?...

[Traab]

"Oops." Alternatively, "Uh oh."

[Fabletop]

"Whatever happens, if a cop appears, RUN".

"I'm pretty sure the world ends in about four minutes."

"Right: none of you live to see tomorrow, unless you do exactly what I say".

"In three days, the Earth will be destroyed, unless one of you dies."

[Sith_Happens]

"Don't blink."

"Count the shadows."

[Darkpaladin109]

"If you hear or see a badger, run."

"Have they ambushed you already?"

""Oh god, oh god, IT'S YOU!"

"Whatever you do, don't pull any levers."

[CarpeGuitarrem]

"Don't blink."

"Count the shadows."

"Rose Tyler, I--"

[Silverbit]

(On first meeting) "I want it back! You've had it far too lon-oh. Wrong era."

"The city of X? Don't you mean the X crater?"

[Deophaun]

Spoken to another NPC while looking at you: "Don't you think he/she looks tired?"

[Brother Oni]

"Here we go again... wait, you haven't does this yet, have you?" *Sighs*

[Deophaun]

"I'm sorry. I'm so sorry."

[NichG]

"If I don't tell you what happened, that means it can still be changed, right? Man, I wish I paid more attention during Temporal Mechanics."

[Mastikator]

"I'm so sorry, but I have to change the past. I can't let you live"

[RochtheCrusher]

"Okay, seriously. I'm going to need you to do EXACTLY as I say. The last six versions of you thought they were SO smart, and look where that got them. I don't have enough temporal flux to try this again, so this is your last chance."

Then, he tells them to do something completely brain dead. Like, "Charge the main gates at noon. By yourselves. Without your armor. Trust me."

[SimonMoon6]

I once had a time traveler show up and start taking a lot of pictures of things (because they didn't exist in the future because they were about to be destroyed).

[Jordan Cat]

I cant believe no one said this one yet.

"Come with me if you want to live"

[Slipperychicken]

I cant believe no one said this one yet.

"Come with me if you want to live"

It's not all that bad: at least he's (apparently) trying to help you survive. And also, if time travelers are using Terminator references, that just makes things better

[Lord Raziere]

"Sigh....I missed the color green...."

[GPuzzle]

"I really did look like Ron Weasley dressed up like Benito Mussolini after all, isn't it?"

[Hiro Protagonest]

"I really did look like Ron Weasley dressed up like Benito Mussolini after all, isn't it?"

...Such grammar. So confusing.

[CarpeGuitarrem]

...Such grammar. So confusing.

It's a time traveler. They're bound to get their tenses mixed up.