This Bill and Ted t-shirt features an image of the time-traveling robot named Dennis. The shirt reads Mistakes Were Made. In Bill and Ted Face the Muisc, Dennis is an emotionally insecure, time-traveling robot sent by the Great Leader to kill Bill and Ted. He is sent to kill them in hopes that it will restore balance to the universe. Everyone will immediately know that you are a fan of the robot that can laser blast his enemies straight to Hell when you wear this Mistakes Were Made Bill and Ted T-Shirt!