I think if I was still smoking weed, and I was around my weed smoking drinking friends the outcome would be pre-ordained Germany.
I remember one incident with me - I escaped clean and sober but just barely.
I'm sure my resolve would have weakened if I'd smoked as well.
After my close shave, I stayed away from situations like that for a while. I needed to build up my 'sobriety muscles' a little.
D