Well, gosh that is a difficult one, kind of uncomfortable. But I have to say that I think God will give us different scenario's in dreams to check out our response to a certain situation. In other words to give us a heads up of different possibilities.
 
For example I and others have had different rapture like dreams. 2 I went but not without sorrow for those left behind. One I stayed and went through a time that I was given a chance to speak for the Lord before my sentence of death. Another were I was secluded in a dark area with other Christians and we had to deal with our sins as we were undergoing a time of being hid and oppressed..
 
The prison thing I have heard before also. To be honest, some Christians will face prison in the trib. Some may even be a type of punishment the Lord allows for carelessness in their walk. Like it says in Hebrews, "The Lord chastises the ones he loves."
 
Right now my son is in a situation were he has to pay all his debt's that he tried to avoid. I kind of think it is so he will be ready. I think there are many Christians that have been careless with their finances and have ignored them. I feel that this is one area that might place them in this prison situation. Pay bail while you can, later you will just have to wait it out.