Does prisoner mood affect prison chance?

[Livingston I Presume]

If a prisoner is happy, is he less likely to attempt to escape?  And vice versa of course.

[Aarkreinsil]

I think the amount of prisoners that share a room, as well as the amount of prisoners compared to the number of your colonists also factor into this. But since it's an event, it could technically trigger at any time.

Just cut off one leg of each prisoner and they wont be able to have a mental break or escape in any way. Also, you'll always have spare legs that you can use for your colonists or sell on the black market xD