Believe it or not, but the bar business, somthetimes intermingles with the the drugs business. It's a fact and whether or not you partake in the activty ,you are in that business too!
I know you say "I don't do drugs" but sometimes "It is what it is".
When you are working behind the bar, you'll see whatever, and just like the crazy relatonship situations you see, you'll be like whatever, becuase you've deen it all, and it makes no difference, because that's your creed. "I know nothing and I see nothing"
As a bartender you hold the fate and lives of the people you meet. Either way people are grown adults and they're going to do whatevere the want to do. Never rat out on a customer unless you want to be a bartender for long, it'll catch up to you. Your word is your bond , but your silence is priceless, customers do remember that!