What if you had to disarm your enemy... without disarming your allies?

In a classroom setting, the only logical way to disarm your enemy without disarming your allies is to disarm the enemy. However, the enemy will likely try to disarm you first.<br><br>Let's assume that your enemy is also wearing a gun. If you try to disarm them first, they may disarm you.<br><br>How do you disarm them without letting them disarm you?