I'm happy that my cat ran away
Why would you be happy your cat ran away?
I hate cats, they are bad for my allergies
You should look for your cat if it's lost. If you find your cat, you can rehome it with someone who appreciate it more.
I don't want to look for my cat. I hope a nice dog eats her.
It's evil to wish death on your own pet. You're her owner and it's your duty to look for her. If you found her just put her on adoption.