League dart night could be a session, a poker game could be a session, watching a UFC ppv with your pals could be a session. A round of golf. To me, anything that i'm gonna be drinking at, away from home, consists of a session. So i'd rather not be obliterated and still have to find my way home. On the other hand, if the UFC ppv is on at my house, or if I hitched a ride to the golf course, or if the dart game is at the bar around the corner, abv, and quantitty go out the window.