The party, sans rogue, is currently trying to talk their way past the guard room full of gnolls. Fighter, Cleric and Wizard are succeeding, with the help of some incredibly lucky rolls, to convice the gnoll guards that they are Official Dungeon Inspectors (TM), how refreshing it is to see that the guards are on their toes, etc. etc. Improbably, the guards are falling for it hook like and sinker.
The rogue, meanwhile, popped a potion of invisibility, and was using his Cloak of Spider Climb (3E version) to slink along the ceiling, and carefully pull the bell upwards: the bell the guards had suspended from a chain in order to ring in case of attack. So far, so good….until the rogue rolls a 2 or something.
Note that the gnolls are armed with longspears and javelins. They hear a clinking noise above them, and look up, just moments after the potion of invisibility has worn off. Above them, looking something like a cape-wearing, black-clad Spiderman, is an elf rogue, carefully coiling the gnoll’s alarm bell-on-a-chain.
“HEY!” Yells the lead Gnoll. “WHO ARE YOU?!”
To which the elf responds, in what has to this day been the most repeated quote in my group’s gaming history…
“I’m an elf!”