I feel you on the tolerance thing. All my friends are full time potheads. I'd love to walk around functioning while fucked up all day but I take two puffs and I sit there silent, looking around like a meercat for an hour and then I pass out. Its been like that for me since high school. People are like, "Yo, smoke a joint with me." I'm like, "Sure, if watching me take a nap is what you're into, we can totally do that."