My mom acted the same way. I have an issue with bringing home animals all the time and i 'accidentally forget' to tell my parents before doing so.. I found out that cats and dogs and fish and anything else would make for a good pet for my mom and not enough to piss her off... too much. But the second she found a snake tank setup in my room a couple days after I had gotten him, she freaked out, started screaming, telling me to get it out of the house and she didn't want it in her house, blah... blah... blah. I argued back explaining how I've had him, she hasn't notice, she'll never have to deal with him or handle him and every fact I could think of about how a BP is a great pet. But she didn't fall for it, left the house, went to my grandma's and called, telling me she's not coming home until he's gone. So..I ended up moving out for a while with my new BP.