Hopeless Sheila
Sheila was most likely feeling helpless as a result of her circumstances. We have no idea what the animals are thinking about it, but we are keeping our fingers crossed that Sheila will be able to keep fighting for her life. This is not the appropriate method for dealing with animals in any way.
A Big Problem
The rescuers assumed Sheila had given up because her condition was not improving. Shelia, in reality, ceased moving after a few days of lethargy and weakness. She vomited everything she ate. This put the crew in a tight situation.