How Many Dogs Does it Take to Change a Christmas Tree Light Bulb?

A lot.

Merry Christmas from Fancy, Kerby, Pie, Missy, Roscoe, Molly, Dottie, Muffin, and ♫  a partridge in a Christmas Tree! ♫

 No lightbulbs or partridges were harmed in the making of this picture.  I am unable to speculate why Kerby is getting squished and why Muffin's eyes are closed.