(A customer walks in with his girlfriend. He’s having an issue with his cellphone.)

Customer: “I can’t hear my phone ring! This is an outrage! I paid so much money for this thing! I should just return this piece of s*** right now!”

(Without saying a word, I take the phone and move the “silence” switch to “off”.)

Me: “Now try it.”

(The girlfriend calls customer’s phone, and sure enough, it rings loud and clear. The customer sheepishly walks out and his girlfriend follows.)

Customer’s Girlfriend: *to her boyfriend* “I told you, you f***ing idiot! We could’ve saved the trip over here!”