next time, if u n him manage to filter, drive very slowly, make
him more tulan.. at most he bang u lah, if hes a bastard, he will
bang u hard with intent to kill, if not let him bang u, claim his
insurance, if he aggresive, call police, tell them u r very
sscared, cos hes threatening u or something, most important, have a
camera/camera hp with u.
cheers
Hmm.. come to think of it, not very good advise..