If there's one thing that annoys me, it drivers who come past you doing silly speeds through road works. I mean, there are signs everywhere saying "30" or "40", plus the hundreds of road cones & signs indicating men at work. & still its not good enough for some- I sit in the fast lane alongside other cars right on the limit  sometimes to stop people coming past me & all they do is flash their lights at me to get out of the way!!