So a friend of mine was running a game were he had decided to add random encounters with a ninja goblin. We had just recruited one of the players room mates to join the game. Ironically each session he was the character randomly selected (By a dice roll, the DM even swapped the numbers around). Each time he found the goblin ninja it would yell something Japanese and shoot him with a poisoned dart,putting him to sleep. The goblin would then proceed to pull his pants down and vanish. So the rest of the party would randomly find the new guy asleep and drooling with his bare butt in the air. So in the fifth session the room mate comes across the goblin and IRL groans and simply asks the DM "Can i keep my pants on this time?" we all break out laughing as we see the pain in his face for his characters embarrassment.