Don't feel bad Kim or Jen. We all know that the thing we love most about these little critters is the fact that they are so unpredictable and have a mind of their own.
I'm telling you Jen, she just wanted to make sure she got to stay with you!
The shelter had a very gentle cat go bolistic on them at PetSmart one time. He was such a sweety but went crazy one time when they got him out. He bit someone too and had to be cornered. He never got to go back to adoption days again either but he did finally find his forever home on Petfinder. The shelter had to pay all this guys medical bills.
I was in Feeders Supply the other day getting tons of kitty litter and I saw one of the shelter ladies checking on the cats and one got away from her too. It was hiding under some shelves when I left but she was having a hard time trying to get it out. Fortunately no one was around at that time or it could have been a fiasco too. It is bound to happen sometimes. It's not anyone's fault.