And none of the cliched "I once photcopied my arse/testicles/boobs" tales

The strangest thing I saw at one of these was a girl come out of the toilet with half a toilet roll coming out of her jeans and trailing behind her. She was left with this wedding dress like white veil "train" for about half an hour before someone had the deceny to tell her. Me included as I couldnt speak at that stage.
Whats your embarrassing/funny Christmas work party story?