- A whole block that's pointless but they didn't bother trimming it - Spawning threads for things that don't need threads - Using timers for things that don't

- A whole block that's pointless but they didn't bother trimming it - Spawning threads for things that don't need threads - Using timers for things that don't need timers - Everything in one file, OR - Everything in way too many files - Most of all, busy loops, thread safety problems, and global mutable state. I have seen the face of student code and it is weeping