It's the carrot & stick approach. Bribe the cat & threaten the kids.

yeah, but what do I use ont he kids?!?

Try bribing the cat with liver, that always works for my brats.

Oh Lord - now she's going to want me to make a witch costume for the poor cat!!!! The cat is black too, my sd be all over this! thanks from me, not so much from the cat!

Your step daughter might like this pic then:
http://forum.smartcanucks.ca/members...ure1613-h2.jpg