I had a "pet" black widow in a hamsters cage that I caught outside my house, and I was feeding it crickets and it was cool for a while, but then it had a egg sac and I got rid of it but then she was laying like 3-4 egg sacs a week and one time it actually hatched and there were hundreds of those little things and immediately after that I got rid of it, but she was laying eggs without a male, so I wouldnt be surprised if one could of escaped, SCARY!