If they only attack you when you are trying to play an "a" with fingering 1+2, there is a possible chance to calm them down by using alternative fingering 3!!! The "a" with fingering 1+2 is often to high pitched and this might scare them so they attack. By using alternative fingering 3, you can lower the pitch to their level, and they might be more friendly to you. Then you could live together in clean harmonics!! This is the only advice I can give you at this very moment. Good luck!