Quote Originally Posted by Worldsong View Post
I'd say that Occam's Razor agrees.

I'd bet a lot of quatloos that if you don't disarm the trap like Haley did you won't even notice crossing it. It's not the kind of trap that detonates or betrays its presence.

Instead the difference in floor colours makes it extremely likely that if you manage to bypass this trap you're entering a different pathway than if you trigger the trap. Granted I doubt a high level rogue would leave it at that so they'll need to remain careful, but odds say that this is the first step you need to take to reach the Gate.
I dunno. If using the rat skull gives them a few seconds like this, then unless Team Evil went in exactly abreast, whoever was in the back should have seen it hit whoever was I'm front. Though I don't know if we're seeing the usual function. I forget the exact rules around traps, so I don't know if she just tripped the trap or did some weird Rogue thing to it.