Twat on motorbike

I agree with you there, if the petty ticketing was aimed at motorists in the cycle lane we'd not be complaining would we, (well I wouldn't) I guess traffic offences are all the same to the met. It should be extra points for getting cars!

In terms of risk, it really should be - I did this calculation a while back, but never posted it. I think it gives a decent perspective on why anyone in rapid motion has a duty of care (but particularly those in rapid motion in a big heavy steel box):

E=0.5mv^2:

for simplicity, taking v=10m/s (~22mph):

Fat bloke on bike: E = 0.5(100)(100)=5000J

Ford Focus (lightest model): E = 0.5(1,229)(100) = 61450J

Muzzle energy of .50 BMG: 15000-20000J