Cerberus is a big, crazy hellhound with three doggy heads, lion claws, and a mane of snakes. So, yeah, there weren't a lot of folks lining up to adopt him at the pound. Luckily for Cerberus, he was adopted by Hades, Lord of the Dead, who loves every inch of his hellish body. Cerberus is now gainfully employed as the watchdog of the Underworld, where he makes sure that no ghosts ever try to break out of their gloomy home. Aw, we love happy endings.
Kerberos, Poochy Woochy
Persephone's Obedience School (drop out)
Hades for King of the Gods
Typhon (Dad), Echidna (Mom)
Orthrus, the two-headed hound (I win!)
Lady dogs (but they're totally freaked out by him)
"Every dog has its day."
The Call of the Wild by Jack London
Crystal Mountain by Death