Dwayne,
A new truck driver at 21 back in 1991, my first time into Canada,
I knew about the kilometer/mile thing, but It didn't stick.
Heavy with a load of paper near Montreal, I took a highway exit
that was posted 40, at 40!
Lucky for my young dumb ass, it was a ramp with 2 turns, not
one of those jughandles that keep getting tighter.
I squeeked around it, pulling fabric and cushion up inside my belly!
And never forgot to use the right scale on the speedometer again.