I did a ton of drugs in my days. I was in jail for dealing when I was 18. Released due to lack of evidence as it was such high quality the police decided to keep it. I snorted a ton of coke and smoked tons of weed all thru the 70's ,80's. Never, ever had a problem going to work and doing my job. The drugs ,if they are involved , which I believe they are, are not the problem at all. It is the individual.
"Celebrity Rehab" maybe?