i my self have passed out for about 10 minutes while on weed. Once I put 2.5 grams into a fire cracker recipie and ate it... I was very very high for the first hour and then I drank 1 beer shortly after while I was walking my vision tinted red then completely black and i fell to the floor.... and my friends carried me to the car were i woke up.... i drank some water and went home n ate some food... was all better after that... i once smoked alot and had to sit down in the middle of public before and getting strange looks from ppl... all i can learn from these experiences is to keep a lower tolerance and only smoke enuf to get a lil high n mellow but now a blunt is over kill for me now... i got like a 3-6 hit limit now no more big fatty blunts and huge bong rips for me...