Okay, story time. First time one of my sons, (he's in his 30s now) smoked with me was when he was around 17. I'd been covering up for years, but apparently not good enough.
We were having a barn and lawn party. Beautiful fall day. I think it was one of those birthday parties that begin in the day with family and friends and end up at night with just the hardcore partiers hanging around the keg. Anyway good food, lots of people, adults, relatives, grandmas, kids, a real mixed bag of people. A few that smoked and quite a few that didn't were there. Prohibition was running hard though.
We asked guests to please use some discretion and smoke out back, at least until all the grandmas, kids and stick up the ass brother-in-laws left etc.
So of course just after dark, I'm out back, about 10 beers, maybe a shot or two and several joints already into it. A farmer friend just lit one up and we're ready to burn another one with a group of half in the bag buddies all standing around sipping beers in a circle. . It's dark, I take the joint, hit it hard and pass it to the next guy standing beside me.
Hear him take a long hit and then say "busted dad!". Surprise !!! It was pretty funny. Kid had a good point.