My number one drug sin would be stealing an entire prescription bottle of oxy from someone fresh out of surgery. And I've done it several times.
When I was younger I also use to raid medicine cabinets whenever the opportunity would arise, wether it be at a family members house, friends house, or even a guest at a strangers house, I just didn't care. 90% of the time I found painkillers. You would be surprised, it seems most people have a leftover painkiller prescription or two leftover from a past surgery and my younger self knew that, so I would always check.
Drugs make you do bad things!