Driving at the speed limit can get one into more trouble than speeding would.
In this part of the world, drivers routinely exceed the speed limit by about ten percent, and often push it more. The pedant who cleaves to the magic number at all costs will provoke fellow motorists into some spectacularly risky behaviour, especially on a two-lane highway such as Highway 7 or 8, the main drags of Perth County.
I once witnessed a motorcyclist ride the white line between such a pedant and an on-coming tractor hauling a harrow, so desperate was he to get in front of that bastard determinedly doing 79 kph in an 80 kph zone.
As for cyclists, most of them scare me when I'm driving in the city. It's not just their blithe refusal to follow the rules of the road, but also their tendency to unpredictable -- and unsignalled -- movement. The last time I nearly killed a cyclist, he was riding toward me (the wrong way) on a one-way street, in the dark. His bike may have had reflectors, but I could not see them. Fortunately, he was wearing a light-coloured tee shirt. Otherwise, he'd be dead and I'd be in court, if not jail.
Children on bikes who abruptly jink off the sidewalk to cross the street in the middle of a block -- don't get me started.