A modest proposal: cars should be fitted with a mandatory safety device which, if the car drives at speed through a puddle by the footpath, sprays the driver in the face with cold dirty water.
@rsynnott your device needs to detect other humans. If there are no pedestrians or cyclists to soak, no spray should be applied.
If there are, maybe the fine should be in the post?
@EI3JDB I'm going for more of a 'retributive justice' vibe, here.
@rsynnott probably best to just execute all motorists then