(An elderly woman drives up in her Mercedes and asks about our services.)

Woman in her Mercedes, after hearing prices: “These car washes aren’t expensive enough!” *drives away*

Manager: “I would’ve charged her more if she asked.”

Customer: “Yes, how much is your ‘four dollar car wash?’”

Me: “It’s four dollars, ma’am.”

Related:
The Return of Captain Obvious
Captain Obvious To The Rescue
Belaboring The Obvious