I studied photography and one of the teachers was blunt about quality and talent to the point of rudeness. He'd tell people they wouldn't even make a photograph

I studied photography and one of the teachers was blunt about quality and talent to the point of rudeness. He'd tell people they wouldn't even make a photographer's arsehole, let alone a photographer. The day he handed back one of my photographs and said "Congratulations, you're now a photographer's arsehole" was a good one.