My manager makes me buy him coffee whenever I mess up at work. Is this normal?

[u/Fit-Platform-8103]

I have a manager who, whenever I make a mistake on a task, or something happens like me arriving late, tells me that my “punishment” is to buy him coffee.

For context, I’ve been late 3 times in the past 2 weeks because of heavy traffic. I understand that being late is my responsibility and that there should be consequences or at least something in place to make sure I don’t fall into the same routine. I’m not trying to avoid accountability.

The first few times, I honestly saw the coffee thing as a bit of a joke and thought, “Okay, I messed up, fair enough.” But now it seems like every time I make a mistake or something goes wrong, I’m expected to buy him coffee.

At this point, I’m starting to feel like it’s getting too far. Mistakes are going to happen at work, and while I understand being held accountable, buying my manager coffee every single time feels pretty strange to me.

What do you guys think? Is this just harmless workplace banter/punishment, or is my manager crossing a line?