There have been many times when people have discovered my children have autism that they strongly affirm that autism is caused by vaccines or they offer a surefire cure for autism. I always have to make a conscious decision about how I should respond. My first thought is always a debate but rarely is that the right decision.
I love this list of ways to respond by Laura Shumaker. I should keep this list in my wallet. In fact, this strategy could work for a number of controversial subjects. This is great stuff.