The traffic enforcement system is rigged against the motorist right from the word go. From experience, these guys more or less know all the matatus in their routes. Whenever they see a new one, they'll arrest your driver on trumped up charges (like a worn out spare tyre) just so that the owner can present themselves eti 'wajue ni nani'. The more brazen ones will keep harassing your driver, especially if you insist on not 'tipping', in an attempt to force him to quit. When this happened severally to me, one of them had the audacity to tell me to my face 'eti wewe futa hiyo dereva yako tukupatie dereva mzuri upee yeye kazi'. The shock must've been evident in my silence. Of course I never acceded to this. Nilisema ka mbaya ni mbaya, played some dirty tricks of my own, earned my respect.
Life is like playing a violin solo in public and learning the instrument as one goes on.