"Little Richard was drenched in milk, and the cow was none too happy. But the iron brig door hung open. "Good job," said Slank. "Next time, you milk the cow," said Little Richard."

Now you see this one-eyed midget
Shouting the word “NOW”
And you say, “For what reason?”
And he says, “How?”
And you say, “What does this mean?”
And he screams back, “You’re a cow
Give me some milk
Or else go home

In general the cows were milked as they presented themselves, without fancy or choice. But certain cows will show a fondness for a particular pair of hands, sometimes carrying this predilection so far as to refuse to stand at all except to their favourite, the pail of a stranger being unceremoniously kicked over.

"I could dance with you till the cows come home. Better still, I'll dance with the cows and you come home."
Groucho Marx was never one to pass up an opportunity for a play on words and this occurs in his dialogue of the 1933 film Duck Soup:

I write in order to attain that feeling of tension relieved and function achieved, which a cow enjoys on giving milk.

Who was the guy who first looked at a cow and said 'I think I’ll drink whatever comes out of these when I squeeze ’em?

Seward would inspire a cow with statesmanship if she understood our language.

She jerked away from me like a startled fawn might,if I had a startled fawn and it jerked away from me.

To country people Cows are mild,
And flee from any stick they throw;
But I’m a timid town bred child,
And all the cattle seem to know.

She dragged me across the floor, stopping from time to time only to kick me. I didn't know our cows too could be so inhuman.

Parties who want milk should not seat themselves on a stool in the middle of the field in hope that the cow will back up to them.

The cow is of the bovine ilk; one end is moo, the other milk.

Do you know why it is that when a rancher fucks a sheep he does it at the edge of a cliff? It’s so the sheep will push back.

By making inquiries he found that the girl's name was Bathsheba Everdene, and that the cow would go dry in about seven days. He dreaded the eighth day.