Ron Gerring missed the ’60s the first time around, but he figures he’s found a scene almost as good in Amsterdam today. “I see Holland as having only two rules,” says the itinerant singer and songwriter from Toronto: “don’t hurt anybody, and don’t steal anything.” Then there’s the dope. “You don’t have to worry about the police, the window being closed or your mother coming back,” says Gerring, who is 39. “Yeah, this is hedonism.” He smiles and sips his Heineken at the no-frills Hans Brinker Hotel. “Just short of debauchery, I think.”