Most Helpful Guy
Let's just put it simply this way:
1) Is it fine? Yes. Of course.
2) Is it safe in our society? Not really, no. You can be labeled a lot of things by angry, bitter people. Most will probably consider it cute but many others will be against it.
So in short, go ahead but watch yourself.
Most Helpful Girl
I don't think its a problem once in a blue moon is fin. I feel if he's a gentlemen he might pick up the tab anyways. I treated my ex out once he was surprise so go for it! Enjoy