So, when I ask the guy at the Flying Pigs stall at Union Square, he cracked a smile and launched into an explanation:
"First of all, a cow udder is soft and easy to pull, and not hard to get milk from. A pig's teats are hard and hidden, and the piglets really have to work to get at them.
"Second, a pig is not cooperative the way a cow is. You'd have trouble even catching a pig to milk it.
"Third, the consistency is not at all like cow's milk. It's more watery.
"Fourth, pig milk is really gamy. You know how goat's milk is? I like it, but lots of people don't. Pig milk tastes even stronger than that."
