It's probably already heard about, but it's one of my finest moment in D&D.
We are a group of 4 fighting to retrieve the MacGuffin into an ancient temple. It is guarded by the spirit of a paladin who challenges us whilst being under a giant platform. We start to fight and he kicks our asses pretty bad, but I have an idea.
I send my familiar to patrol the platform. Turns out that the MacGuffin was there and that it's not guarded. My raven flies to pick it up... And dies.
I kinda love my familiars, I talk and have fun and make them do funny and cool things, so you can imagine how pissed off I was.
Our Dm usually gives us nice thing, and I got something like 14 Necklace of fireball.
I take them, give them to the dwarf who launches them against the paladin, and set them off with a fireball.
BOOOOOOOOM.
Two hundreds d6 later we find the room completely shattered and a pretty much pissed off mage who takes the MacGuffin with no problem, having destroyed all the defences