I would have been hella angry too. Not saying Mills may have done it on purpose, but take into account his malcontent, and the fact that he was way out of his league, and that's a bad recipe for Peterman.
Doesn't matter, Peterman plays QB like I play Madden. The ole 9 step drop fadeaway jumper.. to no one. Trust me, most rookie QBs with any promise don't make that dumb decision, let alone like.. 3 times.