Ohh!! It was the old Jaws-trick, aye? Okey.. Let's see if I understood this right:

Husband: Honey! Dinner's served!

30 minutes later...

Wife: Oh, this was a lovely dinner, my loved. But I just can't manage to eat the last chicken meatpiece. Perhaps we should give some to Fido? Fido!!!

Husband: Haha, that dog.. Well, where can she be? *Sarcastic voice*

Wife: Fido!! Where are my darling! FIDO!!!

Husband: You know, that's not chicken, sweetie..

DUN DUN DUN DUN

Husband: *Holds up Fidos cut offed head and draws a vicous knife and smiles*