I've never over tipped.

Yes I do see myself as a better more honorable person because of it. 

Yes I view you as lowly beings of the sewers if you've EVER over tipped. 

Sorry but it's the truth. Us truthful tippers are highbourne royalty that you should respect and admire.

Casting stuff like this is risky because some people take it seriously

But we press on, knowing that we must always try to be funny, even when we fail

how do you know someone is over tipping?
is it possible to know?