Thanks for the rain idea. My Tango was also rescued from abuse and I think water was involved. When I first got him he tolerated his shower perch, but after the honeymoon was over, he lets me know he hates it. He is terrified of water being squirted even from a mister. I will definitely try the rain.
Did it help at all OwnedTango? I have just had an extremely phobic IRN, a PBFD victim join me. He has only been here one day, so I have yet to find out how he reacts to misting. I am just giving him a little time to settle before even attempting to wet him, the poor creature.