Jake: My doctor has a cow puppet.
Evelyn: Oh MD or Ph D.?
Jake: C-O-W.
Evelyn: Oh MD or Ph D.?
Jake: C-O-W.
Jake : My doctor has a cow puppet.
Evelyn : Oh MD or Ph D.?
Jake : C-O-W.
http://www.tv-quotes.com/shows/two-and-a-half-men/quote_12086.html