Nah, but...I had this one professor who commonly talked about entheogens like weed, acid, and the like. However, he kept his drug talk very academic and to this day I am still unsure if he was still smoking/doing drugs or just a reformed sober guy. Either way, I'm positive that he had history with drugs in the past - not that that makes him too different from most professors/teachers, I'm sure...
I've personally known several primary and secondary school teachers who smoked weed or did coke...even heard of how one middle school teacher did her teaching interview after totally binging on coke the night before, lol. However, all these teacher that I'm speaking of I knew as an adult. I've certainly never engaged in any drug use with teachers/professors at an institution in which I was currently enrolled.
I feel like a good deal of educators probably have experience with drugs at some level...hell, drinking seems to be a ritual for quite a few alone....however, that's just a theory.