I'd like to know what this situation is called.
The gist is the only way you can stop something is by doing it first.
A real world example is a MS Windows feature called sticky keys. You can turn on sticky keys by pressing the shift key 5 times in quick succession. It will then make a beep. Every time the shift key is pressed another beep will occur.
Now someone says that the beep from pressing the shift key must stop (no speaker control) but the shift key must still be usable.
The only way to turn off sticky keys is to press the shift key 5 times in quick succession resulting in further beeps. The 6th press will not produce a beep.
Anyway, hope that makes sense.
I don't believe this is a catch 22 but correct me if I'm wrong.