The Baily and Psycho show will eat anything that I eat. They will at least try it and if they dont like it they wont pester me next time i eat.
They are also great taste testers. If I give them a little meat and they dont eat it I trhow it away. Learnt the hard way to trust their judgement with food poisoning
And of course they eat the assortment of bugs
If you can't spoil a pet, there is no use in having one.