First, it was Kreacher for his extra protein diet and slow eating tendencies. Then, Candice was getting crated too since she's so bi-polar. Then, we started with Oscar because she was getting medication and usually walks away when another cat approaches her dish. The most recent kitty has been Lil Dani who seems to get over-stimulated at feeding time and goes after some of the kitties... and this has been no easy task because he'll leap, jump, run, hide and, if caught, will wiggle, push away from and (though mostly accidental) scratch to get away from being put in the crate.
Well, last night, he jumped in the crate on his own!! I was beyond excited that he caught on to this so quickly (we've only been crating him for like a week) ... and relieved there would be no chasing or scratching for the night :)