That depends on how much you are willing to bet on character concerns... in general, I avoid them like the plague.
As a smoker myself, the gas mask usage didn't scare me, it was the fact that his own stepfather (I think) was the one trying to torpedo him... I've seen way to many NFL players crash and burn (sometimes literally) because of this off field stupidity.
All that said, my capacity for risk is pretty high and I watched him fall with glee. ...and I'd take Mims if he falls to us. There are a couple that I like better, but drafting a ten year player always appeals to me.