do you want some of my salad?

I had ordered a salad and he had ordered a jumbo jack. I was happy with  my salad but his Jumbo Jack looked so yummy. "Do you want some of my salad," I asked.
"No, I'm good thank you."
"Are you sure you don't want some of my salad?"
"I'm fine, but thanks for offering."
" Are you sure you don't want some salad."
"No, why do you keep asking"
"I thought you would be polite and reciprocate the question."
"Oh did you want some of my burger?"
"why yes, thanks for asking."
"If you wanted some of my burger why didn't you just ask""
"I did, I asked you if you wanted some of mine."

So that began our sharing question, it was a way to not seem greedy and to feel like we were sharing. I think it gave both of us the opportunity to be kind to one another. Unfortunately one of us would always abuse the situation and ask things like… did you want some of my peas or did  you want some of my artichokes in an effort to get some of the burger or burrito. I'll admit it was usually me.