Dude where's my car?

Walking out to the parking lot and noticing that yoru car is missing.  It would be scary for most anyone.  And it was for me today.  Until I remembered that it isn't just my car.  I just stepped out into my first communal experience with co-owning a car.  My firiend and I are enjoying the fruits that come with equal ownership of our new car.  This experience has thus far has tested my trust, selfishness, pride, fear.  And the weekend hasn't even arrived, when he is taking it home to be with his sister.  I have a lot to learn about communal life if I am wanting to move into an intentioanal community.