I got this one from the Prairie Home Companion Songbook, but I believe it originated in Mad Magazine. I've been singing it every Christmas for the past 35 or 40 years. "May his bark be worse than his BLIGHT"

White Sheepdog

G / Am / |D7 / / / |
[G] I'm [C] scream[G]ing [Gb] at [G] a [Am] white [D7] sheepdog,[C#]
[C] One who is [Am] sitting [D7] on my [G] chair. [Am] [D7]
It's a [G] thing I'm [G7] dreading,
The [C] way he's [Cm7] shedding,
And [G] covering [Em] everything with [Am] hair. [D7]

[G] I'm [C] scream[G]ing [Gb] at [G] a [Am] white [D7] sheepdog,[C#}
[C] And should he [Am] visit [D7] you some [G] night, [Am] [D7]
May his [G] bark be [G7] worse than his [C] blight, [Cm7]
And may [G] all [Em] your [Am] furni[D7]ture be [G] white. [Am] [D7]