The Drunk Walk

I have a model in my game. Its basic but its part of what the game is about. I need it to do A drunk like walk. But im not talking about animation im talking about it walking around but like a retard and falls over every now and then. Could someone help me to develop a Code to do this.

The model is a ragdoll created by several character joints. Will that help when making the drunk-like-retarded walk like we could just stand the legs up but give it a weak balance. Here is a picture to help you.
[4671-block+head.png|4671]

There’s no way getting around the fact that you’re going to have to do some keyframe animation in an external program to get the effect you want. Even in the new version of Unity, which has a well-developed system for visually assembling and controlling the animations, you still have to import the raw material animation clips from Blender or Maya or what-have-you.