I also have a very vocal dog, and the play growl isn't exactly a growl, that's just the closest descriptor I can come up with. Your right Patty, there.s a big difference between the "this is fun, but needs sound effects" noise and the "dangerous stranger" and "misbehaving cat/puppy noises".
Dr. Seuss~DLH (brother's cat)~June 2007-
Misty~DSH (my cat & Mooby's mom)-?-
MooBoots(Mooby) ~ DMH(Mom's cat)~July 21, 2008-
Sunshine~ Golden retriever X white german sheperd (Dad's dog)~October 24, 2008-