My high school computer lab had an incredibly incompetent admin whose idea of security was to look through the bash history of problem students and go from there. Anyway, at one point they decided that someone had used cp to copy things to places they should’ve have been (did I mention they didn’t really understand UNIX permissions?) they decided to just remove cp altogether. So of course I made a fake cp (in Java, because that was all I knew at the time) to replace it.