Sounds like I'm gonna catch hell for this, but about 4 years ago I got a property tax bill for a car I no longer owned, for 3 years prior to that date. I had originally overpaid because I was a couple weeks late, and unbeknownst to me, they had applied a $20 late payment charge. Nothing was said, mailed, or blocked the next two years as I paid my property taxes on that same car. Then they did some kind of in house audit that went back 3 years, and sent me a bill for about $17.13. A three year old bill.
I called them in a very friendly tone and tried to get it waived. No dice. Not only were they firm about it, but they blocked my registration and DL renewal until it got taken care of.
So I went to the bank, handed the teller $17 cash, and had her hand me over 1700 pennies. I broke open the rolls, put them in a huge crappy 64oz plastic cup along with $0.13 from my pocket, went down to the local govt tax office, and when it was my turn, I handed them the bill and dumped all 1,713 pennies on the counter. 2 people behind me in line were mad. About 5 cheered/laughed. The supervisor came, and it turns out he's the douche I talked to on the phone. "excellent"
They took the money though. Took the supervisor about 45 minutes to count it all out. I sat there the whole time with a shit-eating grin on my face. Definitely not the most mature thing I've ever done, and I'm not proud of it, but sometimes people need an object lesson.
Okay, torch me.