Hey everyone. So I am the type of person that generally doesn't care too much if somebody does drugs or alcohol as long as they don't overdo it, and don't rely too heavily on it. For instance my good friend likes to drink, but he only does it once in a while so to me I don't see it as much of a problem. However whenever he gets drunk, he ends up going too far and puking/feeling sick. When should I step in? I don't want to be a killjoy but at the same time I don't want to see him get hurt!