Not quite a pet peeve but if you’re a server, you can pretty much guarantee a good tip from me by just making sure my water glass is always full.

back to the pet peeves:

-greeting/referring to everyone at the table as "guys"
-asking me what I would like to drink before I can take my coat off
-getting a table next to the bathroom when there are many empty tables and booths.
-getting a table next to where the waiters hang out. Not interested in hearing about your date or the b*#& in your section with the loud kids
-asking me if I'm still working. No. I got off work 2 hours ago, but I will be done with this burger in about 3 more bites.