Murphy loves to play fuss and wrestle with his brothers. When he goes to start something up, he'll run right up to their faces and bark, bark, bark. Then he'll back away a few steps and
turn his little butt right in their face and growl. Tail waggin as hard as it can, he'll
step back butt towards them and growl...step forward a little...
step back butt first and growl some more until the others join in the fun.
He always has a huge grin on his face and that tail's waggin away, so I hate to spoil his fun

...BUT I sometimes wanna tell him he's being a wuss. I think he should go head first like tough dude.
Is he the only one who wants to wrestle butt-first?

Or is he really just weird?

I love, love, love watching him play this way - I hope he never changes.
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He is your friend, your partner, your defender, your dog. You are his life, his love, his leader. He will be yours, faithful and true, to the last beat of his heart. You owe it to him to be worthy of such devotion. -- Author Unknown