The only way people like the scum in OP's story learn their lesson is when you hit them where it counts: their wallet.
A fist to the face doesn't do much these days.
'02 ///M5 Imola Red / Imola Red '09 335i Alpine White / Coral Red
'04 E55 AMG Brilliant Silver / Anthracite
'96 318i Alpine White / Black
'01 330Ci Titanium Silver / Coral Red
'96 328i Jet Black / Black