If it is not Aikido of the mind; I like to utilize the axe kick to the collar bone, ridge hand to the bridge of the nose or throat, and or, breakage of the fragile knee with a powerful side kick. Of course you could casually clap the ears for diversion, two thumbs in the eyes works well, as well as, jamming the middle finger down the soft portion of the windpipe. Spitting in the eye is a charm, so is a finger flick to the same region. Top of the foot stomp,elbow smash to the temple...
We ARE talking about self defense...aren't we?