Not how, but how many?

The NCAA has banned Florida quarterback Will Grier for one year -- PEDs.

Someone needs to answer two questions for me:

1. How many college players are on the PED train -- or, more correctly, how few are not?
2. And, given that reality, how stupid do you have to be to be a quarterback at a major university and be caught using performance enhancing drugs?

Florida is appealing, but, unlike most sports, NCAA rules actually render the player ineligible during said appeal.