I don't think there will be an issue with the airport. It's tiny and only recreational type planes use it. The Danbury Mall is right next to it, and you can see how the planes land and take off. When they land it looks like they come in over the hill between Danbury and Ridgefield, and when they take off it looks like they are heading more northerly along the state line. I don't think there would be any issue with the planes in Bethel. There's a university in Danbury, so I'd say it's pretty safe to walk around at night because lots of college kids do it every day.