Do you tip at an airport business class/lounge?

[Anonymous]

I have pretty much drawn a line in the sand for when I tip and feel zero guilt.

I tip:
-At sit down restaurants
-For carry out at nice places (but not quick places like Panera)
-hair and nails
-hotel cleaners/valet/bellman if I use them
-dog groomer

Unless I’m forgetting something, that’s it. I don’t tip for food I order while standing up.