Things you do that are annoying but you continue to do them anyway

[Bubba]

I crack my knuckles.

Ditto the joint cracking thing. I'll crack my knuckles and neck any time I'm not feeling comfortable in a situation.

I'll crack joints

I'm terrible for this... I love it when people can't stand it though. It makes me want to do it more. My exes used to hate it but my new girlfriend is a knuckle-cracker too so I can do it to my hearts content!