Tried once at a teenage party it did nothing and all the others were stoned giggling and boring as anything. Never again..and have God son who smoked cannabis every day at uni and ruined his brain, psychotic, schizophrenic, on medication, sectioned umpteen times ruined his life. His father abandoned the family just before Christmas when he was 12, we had them all to stay, a poor traumatised family, he's 32 now, still not independent, still can't hold down a job, he was a physicist and very clever.I blame his father and drug dealers who prey on people weakened by traumatic family circumstances..I do for the Singapore option for the scum who destroyed him