That also protects her, as Donna can always claim "Well, she's an independant contractor, I'm not responsible for her actions". That being said, as far as the baristas are wearing bikinis, there is really no other dress code, so they can wear whatever bikini they want.
Grinder$ coffee mugs and more!
Can you say "barking up the wrong tree", kids?
It might occur to Donna that a handjob machine doesn't belong in a coffee shack!
Also - as previously noted and canon - carpal tunnel syndrome is a thing. So is Tommy John surgery (as opposed to Tommy Lee surgery, amirite?).
with that dress
Look at the latest "Hooters" fiasco...
"Your machinery is too much for me."