I have two points to make:
For a long time, and perhaps still, there was a component of the Bristol Vet School course that involved obtaining a semen sample from a dog. Manually. This was known generally and occasionally referred to at student gatherings by those who attended other vet schools. Of course, it was raised discretely and politely, as you would expect. And before you ask- Liverpool, me.
Secondly, I was once called out to see a scruffy little terrier owned by a rather gruff old gentleman. When I enquired as to his name, I thought he said 'Jack Shit'. 'I beg your pardon, I need to enter this on the computer, would you mind saying that again?' I said in my most restrained and polite 'the bill is rising with every breath I take, numbnuts' voice. He looked me in the eye, cracked a smile and said 'Mother was a Jack Russell, Fatha was a Shih Tzu. Jack Shit'.
I gave him a discount.