Cassie Cat drools sometimes. She has two purr-levels, soft and loud - and I think that when she's got the loud purr going, that's when she drools. I just kind of ignore it because I've seen her stools and some nasty hairballs, so a little drool doesn't bug me. I always laugh when she sneezes because she has such a dainty little sneeze. She gives me the "mom, don't laugh at me" look.