So what are the circumstances in which a bondsman may come off the bond? What would have to happen in order for that to occur?

It's called revoking the bond.

When we revoke the bond, it's usually the family or the friend says, look, he's acting squirrely.

He's not doing what we wanted him to do.

He's not learned his ways.

We don't feel comfortable being on this bond.

And I usually say, email me that so I have something in writing.

What are the good signs that I need to look for that I'm working with a reputable person?