Actually, this is the only drug that I found myself wanting to do whilst at work during those years past when I would do it somewhat regularly. Not even meth had that sort of nagging voice in the back of my head. It was also the only drug that I ever found myself doing in very inappropriate circumstances and the only drug I ever did where I would just dose publicly without a care to keep the high going.
Couldn't explain it but I dare say it's a bit more nefarious than may seem.
Tread lightly is right.