the offensive team switches to play defense and the previously defensive team picks up the disc and can attack their opponents end zone (i.e. they switch to offense).
this happens whenever the offensive team drops the disc or it hits the floor whilst they are attacking, be it through a missed-throw or if a defensive player knocks the disc to the ground. defense do not have to catch the disc to turn over the play.
No, a safety does not get a team any points in Ultimate Frisbee. What happens is that the team that got the "safety" takes the point back to the edge of the goal zone and restarts play from there. If they score they get one point, and if they don't, then the opposing team gets the disc.
There can be any number of people in the end zone when the disc is caught in ultimate Frisbee; the game would continue as normal. Now, if an offensive and defensive player both grab a disc in the end zone, then the play would go to the offensive player.
When charges are dropped then you are free to go
The disc will not go as far and may even come back at you.
it can bounce back up but will probably hit the ground and roll away
Lots of innocent people died.
You need to recall them
Well it becomes a chunky lemon
it kills you