Barney: Jeez, is that what I look like when I'm drunk?
Homer: You wish. That's the stage we call, "Professor Barney" -- 
talkative, coherent, even insightful.  Here's drunk!  
[presses a button on the VCR remote]
[Barney, wearing Marge's dress and a blue wig, stands woozily at the top of the stairs]
Barney: [falsetto] Well, I'm off to market!  [burps]
Homer: Marge, you're making a complete fool of yours -- Oh, it's just Barney.
[Barney leans on the banister, which breaks.  He crashes on the floor, spilling his beer]
Barney: Precious alcohol -- soaking into shag!  [tries to lick the booze out of the carpet. When Santa's Little Helper approaches, he growls, frightening the dog]