Agreed!!
I've dealt with customer service about 7 - 10 times in recent years when they've made small errors at the checkout. Nothing too serious - usually $3 or less that you just want quickly corrected before you head out. Thankfully the customer service have all been good. Definitely takes a certain temperament when your job is dealing with random people approaching you.
Customer service are probably more on edge with the BIG transactions at big box stores dealing with electronics, furniture, etc. Concerns with warranties or faulty goods, etc.
