I'm very glad to hear so many share the same manners. I was once that person too probably. But I can still remember the day crystal clear, My dad passed me the bowl and said: "Hey try to leave some green for the next person". At the time I felt a little under attack, But as time has gone I really thank him for teaching me my manners.

And to rapidfire187, We call those people bums. They want to come in your house and hold your weed hostage, Bullsh!t. Those people will end up not smoking with me anymore.