people who scream when they sneeze-

My dad screams like he's being murdered when he sneezes. He actually says "ah-choo", except it's like he has to scream the "ah" and whisper the "choo". I definitely don't think he used to do that, because I remember one day, well into adulthood, being taken completely by surprise by it. To make matters worse, he always sneezes in batches, three, four, even five times in a row. I think I once heard him sneeze eight times in succession!