1 hit consistes of inhalen, the exhalen, the hit is not finished, untill you have exhaled.

THIS MEAN

if you came over, hit my bong, took your mouth off, inhaled, then put your mouth back on, continued to inhale, and clear the bong, that would be considered one hit. Now this is me, you may not be that way with your weed/guests.

NOW

if you came over, hit my bong, took your mouth off, then exhaled befor clearing it, i would consider you to have taken "your hit", and to have fucked it up,

the hit you take consists, souly of the smoke in your lungs, w/e is left over in the bong, is not part of your hit, but paart of your fucken up ^^. hope this clerifies something.

btw i understand you might run out of room, but you always try n clear what you start

.PEACE.