...Wow you're an ass. Always share your weed...always.
If you don't share your weed, I guess that's what I look down upon as being most ass-holish. If you share, when you're in a dry spot people will surly help you out.

Shit, I always smoke with my friends, weather it's my weed or theirs. Hell, I supplied about a quart of some good chron for a party of about 6 people. All of them have repaid me...ten-fold.