When you interview them and go over the "keep them separate" speech, do you have them tell you how they intend to keep the cats separate and introduce them to each other? Maybe having them state what they are going to do will help you weed out the ones who aren't really listening and just want a cute kitten (and are getting one like getting a stuffed animal at the toystore).
...Always in my heart... Mocha....Nov. 13, 2002 - Dec. 6, 2013
.... Slave to Bengal Cats....Luna, Mystik, Simba, Komet, Meli,
Spark, and Star
.....and a collection of kittens at various times.