My girlfriends BMW brakes have been squealing sometimes when she stops. I told her she needs to get her brakes done soon; buy the parts and I'll do the work. She kept on asking and asking what the noise was so I finally said "I know what it is, it's your muffler bearing." I told her to go buy one and I'll install it. Fast forward to this morning she wakes up and wants to buy the part so I go with her and video this interaction. Pure gold.