You're what? In your fifties, had a muscle in your leg die, blood couldn't get to it. You don't smoke, but you've done your share of hallucinogens, dunno about pot, none in the past six weeks, anyway.

You pump some chemical into yourself daily and your body's used to it; if you got off you'd probably want to die.

Blood has a long memory, mate. If I know your body, trust me, I know mine.

[ooc: Hope this is okay, Morry, if it's not I can delete and reply again!]