The Horrors Of Mobile Detailing

As a mobile detailer i have come across some things that just bug me and the list can go on and on. I'll just point out one of my pet-peeves. So you're at the clients home and you are doing a pre-inspection walk around with the client and the client points to you a spot on the car he is hoping will come out. He then licks his finger with spit and rubs the area and says "yeah i think that'll come out". At this point i am stuck in an utterly frozen state of disgust. Let's hear some stories so i know what to avoid. lol