Is the trustee going to be mad at me?
Are you planning to do anything wrong? Seriously, that's the only way to make a trustee really angry. If you want to play by the rules and do what is required in order to get the relief the law allows, a trustee is not going to be mad at you!
All of our trustees are also attorneys. All of them have represented people going through exactly what you are going through -- and most of them still do it. They understand and sympathize with your situation.
A trustee is not there to punish you. Despite what some people think, almost everyone who files bankruptcy did nothing wrong. They are not bad people and they do not deserve to be mistreated or yelled at. Bankruptcy trustees see this every single day and they don't want to be the bad guy, they have no desire to beat up on you because you fell on hard times.
The only way to get on a trustee's bad side is to deliberately try to do something wrong. That will force the trustee to be the "bad guy." Most trustees understand folks make mistakes -- even once they are in a case -- and they try to work with anyone who is cooperative, honest, and deserving.
Remember: The trustee has a specific job to do, he or she is not there to punish you for falling into debt or spending too much on your credit cards.
If anything, the trustee is on your side in one way: They hope you will get through the process easily and be able to take full advantage of the fresh start offered.
Further reading: Is the Trustee Mean?