<human>: I got a phone call from my mom last night and she told me I wasn't allowed to have my cat returned to me when I moved into a larger place. I recently took him to live with my parents since my apartment is so small and I felt bad for him not getting a chance to run like I see him do at their house. Well the reason she doesn't want to give him back is she when she was watching television a huge spider was walking across the floor. She was starting to get nervous and called out to my dad a few times but he was outside and couldn't hear her. This is when my cat strolls in, notices the spider, and went into attack mode. He does a few butt wiggles, leaps, and the spider is struck down. She then said he took a good 3 minutes to enjoy his nice spidery treat.

Can you condense the text into three sentences or less?
<bot>: My cat killed and ate a spider to save my mom from certain death and now she doesn't want to give him back.