When do people end their sessions

[aislephive]

The question is fairly straightforward, when do you decide to call it quits for the session? I would think a list would include reasons like:

1.) Reached goal of xxxx hands or x hours.
2.) Tags everywhere on all your tables, aka games suck.
3.) Stop loss of x buyins reached.
4.) Up x buyins, no longer want to play.
5.) Large swings.
6.) Boredom.
7.) (insert reason here)

I'm sure there are more so feel free to add on.