Howl commented on Dylan's question: “According to my toxicology knowledge (yeah, I'm an awesome reference, feel free to cite me), cocaine is metabolised and leaves the body within 3 to 8 days (dependent on test methodology). This means that if you're affluent enough - and made aware of when testing will be carried out - you can quite easily cheat the system. Based on this, it really wouldn't surprise me that players are having cheeky hits in the off-season. ;-p*”
