Roger. The first thing I thought of when I read the headline was, “Do they not do FOD walks?” I wasn’t a jet mechanic, but an electronics contractor working for the Air Force and its contractors, and even I knew about the dangers of FOD to jet engines.
I was watching a fun video by a former F-14 pilot (Ward Carroll at Ward Carroll F-14 Tomcat Channel who has a boatload of entertaining material out there, and one of them is a grin-worthy video called 21 Cringeworthy Errors in the Movie Top Gun" and this link takes you right to the part which made me laugh about FOD...:)
If you are an inveterate aviation enthusiast like I am, it is a lot of fun to watch these videos!