The one thing to remember is that you are dealing with living animals that from time to time do just die. I remember hearing on Reptile Radio last year Dave Barker talk about he was cleaning cages and hear this commotion in a tub. Look in the tub and a VPI snow was freaking out and just die. He figured it had a stroke or a heart attack.

I know your upset right now at the loss of your spider and it sucks to the N'th degree. But unless there is an obvious reason this might just be a once in a life time freak occurrence for you .

I hope you find comfort soon and peace with time.