Years ago, my two best friends and I took a road trip from our Midwestern city to Tampa, Florida to see our Iowa Hawkeyes play in the Outback Bowl. Being college students, and being early in the 00's and our lack of credit/debit cards, we took what cash we had for expenses along the way. Every transaction, your pockets got a little bit heavier with the change we received.
We arrive at our hotel in Tampa, and we're hungry. Weser thankful that there is one of those national chain restaurants attached to the hotel that loves a certain day of the week, so we decide to grab some grub.
Our waiter takes about 30 minutes to take our drink orders, leaves to speak with another table, that little did we know, would be an issue, he then another 30 to take our food orders. When we finally start to eat, we run out of drinks. Waiter is still standing at the other table, 15 feet away talking to some girls he probably thinks he's going to take home after his shift, and won't even glance our way. I walk up to the bar and ask for refills and a bottle of ketchup, because we're truly Midwestern and eat ketchup with everything.
45 minutes to an hour later we're done and just chatting about the plans for the weekend, and our waiter still hasn't come back, but he's still speaking with the girls 15 feet away from us.
I go again to the bar to ask for our bills, and the bartender waives him down and I see the sour look on his face when he realizes that he's being beckoned away from his "score". We pay, and being young and naive still leave a tip, but we instead tip with the change we had acquired along the trip. I would estimate that this change would actually be about a 20% tip, which he definitely didn't work for.
As we're walking out of the restaurant, he runs up to us with fistfuls of change saying, "YOU FORGOT YOUR CHANGE!"
We just kept walking.