Plane Sailing
Astral Admin - Mwahahaha!
I think a better way of avoiding an AoO while standing up might be to press Bluff into service. You can use Bluff to create a momentary distraction in order to allow a hide in the rules. I'd be happy allowing a Bluff check to create a momentary distraction in order to allow you to get up safely:
PC: Look! A three headed monkey!
Giant: Where?!? < glances round >
PC: < stands up >
Giant: Doh!
PC: Look! A three headed monkey!
Giant: Where?!? < glances round >
PC: < stands up >
Giant: Doh!