In Receipt Of Some Irony

I’m waiting in line at a cash register. Apparently, the person checking out has some issue with the price and is going over the receipt with the cashier. The man in front of me and the woman in front of him are huffing and puffing about it.

Woman: “If everyone is going over their receipt, it will take ages!”

Man: “Yeah, I don’t understand what’s so difficult. I hate people who are too lazy to look at the price tag before they come to the register.”

This continues for about a minute, and then another cash register opens up. The man and I move to that register. The cashier scans his item.

Cashier: “That will be €3.”

Man: “What? How can it be that much?! Let me see the receipt!”

I turn to the person behind me, who was also behind me in the other line and heard all the moaning about the other guy at the register.

Me: “Don’t you just hate people who are too lazy to look at the price tag before they come to the register?”