I often play the game with my litlun where she'll go out of the room while I'll hide a toy. On the odd occasion I'll hide the toy on myself so she'll search the room, not find a thing and say it's not here. It's a bit of a tease - a bit of a torment hiding it on myself but all harmless giggles to a 2 year old. Pissing around like this in adult conversation is, however, no different - childish.