Jackass returns

So these people come in all the time and never tips. But last time they came in they left this jackass note for one of my servers. 

Always feels great to be appreciated for waiting on a table hand and foot...not. 

Then they came back and this time a different server decided to give them the most basic service. I.e: took order, brought out food, refilled drink only when really empty, and no smile. They left this: 

Well don't be an asshole. 

GUC Out!