And Medium is a great place for a good rant.

I have a potty mouth myself but I don't swear in front of children.

Or wear T shirts with slogans on them that would make you squirm.

A coworker at the library where I worked used to "get back" at library patrons who wore nasty and vulgar t shirts -- she wouldn't waive their fines, even if they asked her nicely.

If you weren't wearing a nasty t shirt and you asked -- nicely -- if you could have your fine waived?

She'd smile, waive the fine and tell you to have a nice day.