I'm not much on celebrating 4/20, but far be it from me to deny others their fun.  This buzz-killing anti-marijana ad, however, will not only bring you down from your high, but might even force you to turn to harder drugs.  While it aims to keep kids away from the apparent dangers of the recreational drug, it's probably been responsible for more harm than good.  There are clearly some brain damaged people behind the making of this PSA.  It's not quite as terrifying as these Darren Aronofsky-directed PSAs, but personally I'd rather listen to Rachael Leigh Cook tell me about the effects of drugs (or just watch Kate Upton again).  Hit the jump to get scared shitless. Check out the anti-marijuana ad below, preferably while under the influence.  And get caught up on all of our other PSAs here.And on a completely unrelated note, here's the posters from Marley, the Bob Marley documentary that opened this weekend.marley-poster