The workout scene Chad does was based off the audition video he sent to casting. That video won over the producers.
A lot of viewers complain that the severed hand is unrealistic as the guy is talking and there is minimal blood. Shawn Allen states this is based off a real call he did and it was exactly like this, but minus the jokes. However, the medic waving the hand was real.
During the sexy car wash scene there was a lot of real fire and police hanging around the station that day.
The most talked about scene is the end. Viewers were curious what was happening in the bathroom.