It took me a while to get used to the slow smoky style of this number. Iris Tramm's first song. It's now one of my favorites. Iris has a dog, a German shepherd named Meadows, who is an important character in the story. She sings to him about her disillusionment with men, hence the refrain " That's why I live with my dog." The song hints that nevertheless falling for Norman Paperman. At Coconut Grove Iris sang to an amazingly lifelike puppet dog, whitch all but upstaged her, and won the audience affection all though the evening. 
Shelia says the heart is just a muscle 
Shelia says the heart is cooled by time 
Hiding out for years down in these trade winds 
In the land of coconuts and limes 
Chorus: 
I've played this game for too long 
My life's just one same old song 
Now marooned for a time on this island 
I go into and out of the fog 
And that's why I live with my dog 
Instrumental Bridge 
Men oh, men oh, oh men I've known to many 
Deceivers cloaked in clumsy vanity 
What men lack in love and understanding 
They make up in stupidity 
Chorus: 
But now and then one comes along 
And lights up my world like a song 
I am tempted to unleash my interest 
Yet I put it to you man's best friend\ 
There's just one sad old way it can end 
Bridge: 
We have our faults 
But men have only two 
All that they say 
All that they do 
You're a joy and a friend and a guardian 
Never bored with my sad monologue 
You're better off with a dog 
Sheila says the heart's just a muscle 
Sheila says the heart's just a muscle