A friend of mine had been playing rugby against some americans and a large chap lifted him up by his ass cheek. He ended up needing surgery after the incident as "he f@%$ing split my gink wide open!" (his words not mine)
You can buy them over the counter. You burn the plastic capsuels which not only gets rid of the plastic but hardens the gink extract inside. You break it into halfs or thirds then put in a bowl. You smoke it and it makes you feel realy good.