whiteys are baaaaad i only ever did that once, my mate used his crystal catcher which takes all the crystals off your weed, packed a bowl and set it up for me, i did the first one and was fine, the second wasnt too bad but the third knocked me for 6 i was just sitting there outside and couldnt feel any of my body at all. i had smoked the crystals all the crystals off about 3 grams of chronic green and was just completely fucked up