When my son played middle school basketball, there was this guy who was always heading off to the concession stand, but he must have had a really weak stomach, because then he'd be off to the bathroom, too. Poor guy might have had early onset dementia, because after he wandered off, he'd forget that he had been sitting with me.
I felt sorry for the guy, so sometimes I'd go out of my way to go find him after he wandered off and try to be his friend, but sometimes I'd act like I didn't know where he went and just avoid him. I try to be a better man these days.