Get some good noise cancelling headphones. Both oldest DS and DD have issues so we have delt with this many times. They both still bolt at the sound of a fire alarm or fireworks. The good ones are not cheap but think of them as an investment. This is an issue that probably is not going away anytime real soon. DH works for a defense contracter. When he goes out to the field to work on some of the equipment the noise from the jets can be quite deafing, sorry about the spelling. So he and everyone he works with gets the ones from Bose. It might cost about $200 but is well worth the investment. Don't worry about looking funny in them. They will not be the only ones there using noise canceling headphones.