Oooh, i remember the old pets for sims one version of this i had

it saved me tones of cash
on the down side, i found that if i used the old motive-booster pet bowl, my cats used to get addicted to it 0.o
she would nibble it...walk a few paces, turn right round and eat again, and repeat that behaviour.....was the only thing that didnt work lol...the personality and skills and tricks bowl worked fine though....
i KNEW i would need a bottomless bowl for my tightwad sims ehhe...i didnt expect it THIS fast though

(many MANY pets thanks you, since otherwise, they would be eating my simmies leftovers lol)