There could be many reasons for needing an IEP. But I do understand the embarrassment - when you live in the same very small town that your child goes to school, when you know where everybody lives and they know where you live, it's very hard to keep private things private.
My line that we used to use for all sorts of things - "We have an appointment." This covers everything from needing new glasses to seeing the dentist, to an audition (for easy child 2/difficult child 2) to my own psychiatrist appointments (no way was I sharing THAT juicy bit of gossip!). Even when I had to attend difficult child 1's school to discuss his suspension, I told difficult child 3's school, "I have an appointment this morning."
Anyone asking any more - "Sorry, I've got to rush or I'll be late."
In our situation, sharing ANY information leads to EVERYBODY knowing, including people who abuse the information. As a result, I share very little in person even with best friends. It's too easy for friends to be 'pumped' for information and innocently divulge something that a more malicious third party can manipulate. If friends don't know the information, they can't accidentally say anything that could be abused.
Example: I was working on a quarterly publication which had just gone to the printers. This mean that my boss had taken a short holiday and my workload had been cut back for a couple of weeks until the next publication was ready to work on. I innocently mentioned this to someone at church. She was a nice person who clearly thought as little of this information as did I. Her next stop was to meet with friends at the local coffee shop. The next gossip I heard, two days later, had come via three other people - I was about to lose my job. And by this time, everyone in town had been told this. I had people commiserating with me. When I discreetly asked my friend who she had seen in the coffee shop, she told me. She also mentioned a former friend of mine who had seemed so solicitous of my welfare in his questions. My friend, a total innocent, had told him everything he asked.
So now I don't tell nobody nuttin'. Unless I WANT to track gossip, when it can be very interesting.
Marg