Script is just... broken?

[Entih]

Alright, now you're thinking in terms of scripting! That should actually work, but you'd have to make sure the note was physics-static so it wouldn't move when bumped, and when you add the callback, the last parameter would either be 0 (check for entering and exiting both) or -1 (check only for exit) (that is, if I recall properly the function's callback add).

I did not even think of that.