Sometimes, the savvy photo-imposer will even squeeze in with a group of friends posing for a *guest phtographer.
Co-worker- "Yeah, but whos that guy next to you scratching his nuts?"
Bill: Here we are at Joe's party, what a blast!
Dave: Who the hell is the guy next to you putting his tounge in your ear???
Bill: Damn photo-imposer, Janet said he grabbed her ass during the picture.