Me: Will you shut up?
Guy: Looks like somebody's on her time of month.
Me: No, I'm not.
Guy: *scoffs*
Me: *smiles sweetly*
Me: Well, if you really want to know when I get my period, I would be happy to tell you.
Guy: Oh, uh, nevermind.
Guy: That's alright.
Guy: I'll, uh, leave you alone now.
Guy: Bye.