My dentist says I have a lot of dental work that needs to be done that would take too much time during regular office hours. So, I've been going late as he suggested. He's been doing a good job fixing my teeth, but I find that the leather seat is really cold on my back. When I remove my clothing as instructed, he doesn't have a gown for me to wear. Do you think I should ask for a gown? He also seems to be very clumsy holding his instruments, he drops them on my chest a lot, that gets kind of cold too. Should I say anything about this?