On Fri, 22 Dec 2017 20:40:33 +0000
Ian Jackson wrote:
bump, or partially straddling it - with both sides of the car getting
only a partial lift as the wheels pass simultaneously over both of the
sloping shoulders.

The problem with doing that is it badly wears the inside of the tyre tread
though admittedly its better to wear out a tyre than knacker a shock
absorber or spring.