Round here, since my friends smoke my buds I spark it and pass it, they puff, pass, i puff, pass. Thats how it goes. But since its my bud I usually take 2 puffs before its out. I would most definitly be angry if someone smokes half of the j and then passes it...I mean wheres the bond? Passing that weed round the room is a bond between everyone int he circle. Its like "hey man, I choose you to smoke with me smoke my weed man its alright" and then everyone loves you for it! Thats at least how I feel when my friends come over. Gotta love em!!!!