Yes I do. It's not me but someone I know. They got sober, got married, had kids. Then they started smoking pot, drinking in large amounts, and taking percocets and vicodin. Now they are into meth and are either IVing it or smoking it. I hope they can get sober again.
I've had small relapses with alcohol where I'd get into drinking a lot on the weekends and during the week, and with pot as well but I stopped before it got majorly out of hand.