Tipping

[SuffolkGirl]

I know that there was a thread in here about tipping the mutuel clerk when you win. However, I don't remember if there was any mention of a tipping cup. This is my first trip to Monmouth and I was shocked to see that many of the tellers had a cup labeled "tips" in front of them. Is this normal practice? I've only been to a few tracks and have never seen this at any of them Has anyone else seen this at a race track, and what do you do? Tip every time you place/cash a bet, like you are getting coffee at Dunkin Donuts?