Suck it, geezer

I almost got into a fight with an older gentleman at the Denver airport because I insisted he cut in front of me in line at the newsstand.

Me: Please, go ahead of me.
Guy: No, that's ok. I didn't see where the line was.
Me: I saw you looking for the line before I found it. It's only fair for you to go ahead of me.
Guy: It's my fault for not thinking more sharply.
Me: You've probably been stuck in airports all day, so you can't be faulted for not thinking sharply.
Guy: ... Thank you.

That's right, you don't fuck with me when I'm feeling charitable.*

* Calling this act "charitable" is itself charitable.