I live on a small island so it’s easy to become quite known you’re nice (or not nice) to people. I tell customers straight up. If you throw a tantrum I’m doing the bare minimum. If you’re understanding I attempt to get the earth to spin in the opposite direction for you. Over time with you being genuine you can get people (even the difficult ones) to see reason. Not everyone but most.

Lisssstttteeeeen to meeeeee. Yesterday I had to tell a customer. You came in with a problem. I offered to fix your problem out of my own pocket (I’m not the boss) and you’re still not satisfied. What do you want? Customer: that’s a fair point. I’m done now. I’ll take that offer.