Wherein I mention Canadians and try not to make Canadian jokes

Work today was not lucrative for me.
Business was slow, and I got all the Canadians at my tables. I did get one denizen from Erie who hung out for an hour and a half, sent me on random trips for bread, asked for free bleu cheese crumbles on her salad that doesn't come with bleu cheese, and gave me a $2.38 tip, thereby making even the Canadians seem generous. We did have a nice chat, though.
Actually, in the Canadians' defense, servers in Canada make minimum wage, so many Canadians probably do not realize gratuity isn't included in the check in America, and therefore tip only according to the norm in Canada.

The only thing everybody agrees is cool about Canada. 

The story that makes today semi-worthwhile, though, is a monetary interaction I had with one gentleman from Canada.
This man had a very sweet daughter who seemed slightly embarrassed by her father's lack of gentility throughout the meal and made sure to thank me excessively for things and tell me her meal was very good.
Anyway, I'd given the man his check and went to pick it up while his daughter was in the restroom. He'd given me two twenty dollar bills and, as I realized when I got to the computer, a Canadian dime. Figuring he just hadn't noticed, I went back to the table.

"Excuse me," I said. "I'm sorry; this is a Canadian dime."

The man stared at me for a minute.

"You mean you don't take them?" he said.

"Uh. No," I said, thinking he was joking around--the first sign of good humour I'd yet seen in him.

"What; you don't take Canadian money here?" he asked.

"No," I said. "This isn't Canada."

"Well, I realize that!" he said, and made an exasperated noise. "I've seen Canadian money all over the place here!"

"Probably because the people didn't notice it was Canadian when they took it," I said.

He fished around in his pockets and came up with a quarter. "I hope this is enough." He handed it to me.

"Thanks," I said, and went back to the computer. I returned with his change. He took it without grace and then commented, "the Canadian dollar is worth more than yours, I hope you realize."

"Yes, sir," I said, and left him to deal with himself for the rest of his life.

Inclusion necessary.