^^^ okay so he kicks him out and he gets his own place and does whatever he wants.. how does that solve the issue?
i was out of my parents house at 19 and got an apartment, but that didn't mean i went out and did steroids or drugs or whatever. i think its a mistake to tell a kid you are out of my house IF....... cause the guy is gonna be out of high school in a few months and go off to college anyway. its not like he is 13, the guy is 18 and about to leave anyway .. see my point?
an 18 year old is NOT the same as a 12 or 13 year old as to how you should approach them. we were all that age at one time so look back at yourselves and remember how things were back then. a lot of what you did was based on the friends you had. i will bet anything that this kid got his steroids from his buddies at school (or at the very least got the idea in his head from them) ...
and in a year he will be getting a lot more ideas from his idiot frat friends in college (things like paying someone to do their term papers, getting hookers, going to spring break 1000 miles away and banging random chicks, getting wasted, adderall or whatever that shit is called that college kids are taking nowadays to focus harder) . its all about making the right decisions on who you hang out with, the parent has no control over that except to instill good morals into their kids. and even in that case a lot of kids still fall into the wrong crowd.. the kid needs some role models ASAP he can want to follow, hell all 18 year olds need that. otherwise they will follow what their idiot friends tell them who don't know shit either