Often a child with autism has one person (usually the mom) that they do this with. As Mum3 says, it's part of the deal with this diagnosis. Often it means that they've trained you to give them what's easy for them and doesn't stretch their capacities.
In our case it's the opposite-- while dd says I "get her better than anyone else, I'm also one of the very very few who doesn't let her skate. She can work that disability like nobody's business with most people. With me she works harder and with less complaining because she knows it doesn't work.
We homeschooled through the mid-grades (fourth through eighth) with a couple of abortive attempts at the public gifted magnet. It worked pretty well for us until eighth grade, which is why she's at the high school now. Her brother (also at the high school) was homeschooled for fourth, fifth and sixth, but did pretty well with the middle school option available, so he was officially enrolled there (though he missed a lot of school time for cultural events, or if we were working on something interesting at home).
