I've just started a new job and all was ok until a colleague noticed I'd done something wrong. It was nothing major and had no impact on my work. Just a small thing which I sorted quickly.
Since, they have not stopped mentioning it. Now lots of people know what happened when it's really insignificant. The specific colleague makes jokes about it and I'm really getting annoyed.
Years ago it's the sort of thing that would have upset me, now it just gets on my nerves.
I feel like I need to say something to them to make the drop it. Not sure what though and they do have a very immature personality so doubt anything will work.