-they both eat ice cream -they don't follow orders/directions very well, remember Dog was ousted from obediance school? -their "coat" tends to be slightly wrinkled and baggy -they have very expressive eyes IMO
Good point!! If that were true, he's be very dissimilar to our hero. Columbo--like so many happily married men--seems embarrassed at the mention of sex. . . which I'm sure Dog is not.