Thank the Almighty he lives in Germany, if this was Merrie England he would all but be guaranteed prison time for daring to defend himself.
Seriously, I gather the real art of self-defense bears little resemblence to those chop-sockey ballets. Furthermore, I gather you don't necessarily need the physique of a Bruce Lee to be able to deal out some serious damage...
Hey, remo - read "Unrestricted warfare."
Don't be so sure. This old guy is bound to be still in darn good shape, I don't care if he does know moves. A gimpy old weak boned man would not be able to pull this off no matter what his training in his prime. They said he was once a police officer. Well I'd say he's likely a Jack Palance kinda guy. Fit as a fiddle and able to outwork many that are 20 years younger.
Even a little training puts you miles ahead of someone with no training.