Using European adapters for loose airplane outlets

One minor travel annoyance I’ve regularly encountered is that airplane outlets don’t hold U.S.-style power plugs ( types A/B ) snugly. My devices come unplugged frequently during a flight. This is especially frustrating to manage in the awkward under seat area. While taking a couple trips to Europe this past year, I noticed that airplane outlets are international and found that type C/E/F plugs…