Arriving home from a night of drinks, I think I finally understood something about the nature of death in a tangible sense: it is like being at a party to the point you are so dulled from all the outside you decide to go home and blackout for the night, not caring what you miss - you are done, tired, your feet hurt (probably your joints too) and you just want the release from all that too much.
Of course, when you do it at a party, you fully expect to be back on your feet the next morning (more like afternoon); to go on, to continue for there to be other parties.
The difference being, when you do it in life, you know you won't have to listen, the very next day, to water cooler Joe saying that just after you left, the party "exploded", the music was "freakin' awesome, dude", everyone went "craaaazy", and "Cindy" want off to blow some guy in the bathroom and, "oh man", it could have probably been "you", had "you" stuck around.