Don't be a jerk.

"When our AP Calculus BC class wore our shirts from CustomInk, the whole school wanted to know what they said. Being the nerds we are, we put "Don't be a jerk!" in calculus terms on the front of our shirt. They quickly became our favorite shirts, and we all wore them every day that we had a test! CustomInk's ease of use really helped use make our shirts the way we wanted them; they sure were a hit. Thanks, CustomInk." - JasonG (Dec 22, 2007)