My mother is a former teacher. My stepmother teaches 2nd grade (and her school recently closed down due to so many hsing families, so she may have a personal grudge!). My FIL is a retired university professor. My dh's grandma is a retired teacher. But the thing I'm worried about most is my dh is a public school teacher! :LOL See what I'm up against? Add in the fact that I never finished high school and you can get an idea of what people may think.
I don't see why teachers take it so personally when you tell them you want to teach your own child. That would be like going to the grocery store, and the checkout girl asking "Don't you want to buy some of our bakery cookies?" and me saying "No thanks, I prefer to bake my own at home" and then her stomping off in a huff.
Also, I've noticed that when teachers talk about how we all have a "responsibility to support the public schools" and how they are losing money because we don't send our kids there, this point is never made to parents who send their kids to private school.

I do worry about dh looking bad at work. Spousal support can really make the difference in a man's career and if he's married to the homeschooling freako...His first job out of college was at a church. When he was hired, it was made clear that they wanted me to be involved in the church as well. So I went along to the services and did a bunch of other church stuff, even though I did not believe in it, because I wanted to make him look good. But after he quit working there I told him I would not go through that again. Obviously what's best for the children takes priority over what other people think of us.