Yeah, well... sharing was never a good thing for me while growing up (according to my mother). Apparently, I did not play well with others when my toys were involved. They even tried some of those children's songs about giving & sharing. I really liked the songs so I didn't share those tapes with anyone. Which was good because the group that sang them turned out to be a cult.
I'd probably still have trouble sharing my mum's chocolate cheesecake. But now it's for noble reasons, of course.