I remember once, shortly after bringing ChikkenPup home. We're watching TV and hear this awful ripping sound, and there's ChikkenPup smiling broadly while spraying out of her butt towards the door.
Then there was the time we went to Denver, her first night there she did in her crate what you describe there - though there may have been vomit involved too, and that was the last night she ever spent in a crate
Does she go on the plane with you?