I've always enjoyed Kristen Johnston, from her guest role in a very funny "New Adventures of Old Christine" to her supporting part as Drew Barrymore's character's sister in "Music and Lyrics." (What's this you say? She played a lead in "3rd Rock from the Sun"? I'm not familiar. OKAY, I am familiar, but if you haven't got anything nice to say, et cetera.) And my opinion of Johnston only SKYROCKETED this summer when a story came out about her getting into a scrap, on a plane, with Nadya "Octomom" Suleman over Suleman's inability to control her children on a cross-country flight. On last night's "Watch What Happens Live," Johnston took a viewer question about the incident, and though she downplays the whole flap, her physical impression of Suleman is pretty great.