All monetary transactions are like that. Yet we don't negotiate for toothpaste, gas, etc.
That's because nowadays, we (in first world countries) rarely interact with anyone that has the power to charge a different price for toothpaste and gas.
Back when the store/station workers were also the store/station owners, we did negotiate for toothpaste and gas. And this negotiation can still be seen in less "developed" countries where the person doing the selling is the person that sets the price of the items.
without being called "bossy" (or B****ey).
Why is what they are being called relevant? Are they there to do their job, or to make friends?
We were playing at a rec center after a group class and he was making new friends playing at a pool table when I noticed a dad come over with a half eaten sandwich to give to his kid... whats on the sandwich... peanut butter! SHIT they've all been at the same table touching the stuff, that kid is little he'll be all over with that food, we have to GET OUT OF HERE NOW.
Or you could, you know, go over to the guy and politely say "Hey my son is severely allergic, could you have your kid wash his hands after eating that please?"
When it is incorrect, it is, at least *authoritatively* incorrect. -- Hitchiker's Guide To The Galaxy