Give you an example, i pulled out of this junction yesterday & there came some idiot in a Jeep speeding right up my ass... i just kept calm although he was shouting & screaming (it´s hotter here now so my window was open). Now i didn´t give him a hand signal or anything as he might have a Dash cam.
Anyway i stuck to the said speed limit on purpose & he was getting more angry right on my bumper. turned off to turn right & as he drove straight on he started screaming again.
In my 30s i would have chased the guy & probably have punched his teeth out, now i just laugh.