A few of mine do, but not all.

Lacy Jane (dog)
Whino Rafeal (dog)
Daphney Roxanne (dog)
Scout Theodore (dog)
Triskit Shianne (dog)
Sprinkles Louise (dog)
Isabelle Raine *Izzy* (dog)
Sugars Alexandra (dog)
Uno Luiz (dog)
Minnie Mae (dog)
Peedee Pete (hamster)
Turtle McTurtle (turtle)

The other 8 don't have middle names so i guess i should think of some for them. Any suggestions for middle names for:
Tiny
Nitis
Cocoa
Heavon
Sky
Jaws
Checkers
Lucky

What are your pets middle names?