I end up doing this in an ugly situation last year (along with my high heels stepping right on his foot), which I really hope doesn't happen again.
Took me several seconds to realize I wasn't being followed. Didn't think that had such an impact as to be suddenly let go. Mind you but this was someone around 6'1 at most.
Most Helpful Guy
Well, I wouldn't say it would 'Disable' them, It would just really fuckin hurt for a few seconds, Obviously if you absolutely twatted it then you would probably break something, Which would disable them.
Your best bet, Is to punch someone lightly in the neck, Not so hard that it damages, But not to gentle. If you hit them in the neck, It 'Winds' people (They loose their breath), And will naturally make someone want to curl over and choke. If you hit too hard though you could cause their Adams apple to puncture their Juggula or something, Which is fuckin nasty ;/1