Well, i have Dust Devil, Juggler's Touch and Aura Strike for that. If they can't see me, they can't hit me. If they do, they need to go through the Juggler's Touch affected area. If they do, they get Aura Strike.
Well, if that doesn't help, there's still Razor Orb. ;P
And to be on topic, i always found the notion, that a simple bullet has enough energy to knock someone down a bit silly. Shotgun shell, yes, especially if it was absorbed by armor, but a bullet, or even two? Any attack that would knock your character down probably breaks a few ribs, and hurts a lot...