To quote Bill Murray:
"Dogs and Cats living together - Mass Hysteria!!"
Pixel even has the remote as he is DEFINATELY the Alpha Pet in the house. Can you Believe he is 15 years old! He is older than ALL of Dean's middle brother's 8 kids! On that note, Jack is 9, so he's older than 4 of them. Buddy's only older than 1 of them.