To ask workmate to not slurp his drink and slam the mug down on the desk

[Benhowis]

That is all

Er, ok.

Have you tried the semi-lighthearted "Oh, you made me jump!" every time he does the slamming?

Otherwise, go for it.

YANBU, but how were you going to word it?

I'd make a joke out of it."Enjoying that are we?" Or something along those lines. Is there something more deep rooted here? Often the things that annoy me about people I dislike, I don't even pick up on people I do like.

Email him a link to this page - it should get a conversation started.

I agree, it's only irritating if you don't like someone. Otherwise it's endearing.

If you're being serious, I think that you probably would be unreasonable to raise this, especially the slurping. The slamming you can ask nicely about maybe, the slurping you can't mention. It is U to ask people to tone down all noises - if it bothers you get some earplugs.