I always get a receipt. Just in the last month, I was overcharged at Dollar General and Braums. The Dollar General experience made me want to pull my hair out. I paid cash and looked at the receipt. I saw that they charged me for an item twice. I pointed it out before leaving the cashier area. The manager needed my full name, address, and phone number before he would give me the $10 back. I had just paid with cash 30 seconds prior. I gave him phony information and got my $10 back.
Good Lord that kind of **** drives me NUTS!!