Insults
I sell my photographs at art festivals. This gives me contact with a lot of people while they look at my photographs. Most of the conversations are enjoyable. Here are some that were not.
"These would be pretty if they were in color."
"You could make these better if you used digital."
"You don't have many pictures here. You must not be a very good photographer."
"The most spectacular thing in here is that camera." (my camera is on display in my booth.)