I say what the heck in the back of my mind often (furry included), but that doesn't mean I don't like it. Most interesting things begin with what the heck.
Plus, a lot of that what the heck applies to me.
Some furry fetishes are unusual, but even if they don't do anything for me, I usually understand the motivation and why those people are into it. None of them really bother me.
Interestingly, I find things like furpiling completely understandable, while things like pony play are a bit harder to wrap my head around.
That reminds me, back in high school I had a good friend - an asian fellow who laughed a lot - and on school days we used to go to McDonalds for lunch back when they had the Humongasize option here in TX (a level above supersize). Anyway, he used to tell me about his giantism fetish - where he is very tiny, a few inches high, and the woman is huge. So it just goes to show that unusual things abound outside furry too.
You know, it's kind of funny now - the first time he mentioned it, it was as plainly as one might comment about the weather. And it did not bother me in the slightest. I asked him a lot about it out of curiosity. I guess it is really hard to shock me.
Too bad I lost touch with him, he was a great guy....