Dude, Sharing food is the best! My best mate and I work on this premise when dining out! We each get something that both of us would like and swap halfs! Two halves of two different meals! YUM! Works the same for starters!
Saying that, if you asked either one of us to share and you've nothing to swap with you can GTF! I'll swap but you have to be pretty fucking special for me to give up tasty treats!
Trading food is good. Sharing food is not.