I believe a combination of snake waste, spilled water dish and regurged rat accounted for the humidity.

You'd be amazed at how wet a tub can get from spilled water dish and snake pee.

There are any number of reasons he could have regurged, the important thing now is to give him plenty of time to rest and recover. Think of how you feel after a bout of stomach flu. You sure don't go out and demolish an extra large supreme pizza and 32 ounce blizzard. You take it easy for a while. You stick to fluids and then just a little bit of easy to digest food until you feel more like yourself.

Keep a close eye on him, and give him time, and chances are he'll be fine.

Gale