such as the biker who decided to overtake three of us by doing so, overtook at speed on double yellow lines
Considering double yellow lines are only ever at kerb/verge side, that is some fete of accomplishment – riding between the kerb and parked vehicles.
Mind you, the vehicles must have been parked way from the kerbside to allow such an undertaking manoeuvre to occur anyway (or parked almost totally on the pavement/verge if an ‘overtaking’ situation)?