Interesting reading, this topic...
As for making dumb things in traffic, my dad scared the crap out of me starting to back up on a one way ramp. Until that I had considered him to be an above average driver with lots of experience in different countries. Maybe it was because he was driving my car as I was watching and judging, we had a schedule although we weren't in a hurry, it was our second father-son trip ever which may have excited him, it was quite hot so he might've been a little dehydrated, he was already above 70... A misjudgement of the situation in any case. Or as my mom said after I got my license: No matter how good a driver you may be, or how well you know all of the rules, there's always someone who for some reason doesn't drive as expected.
@ semp: Was that some kind of Google translator Spanish, or was it in an entirely different language like French or Portuguese? Or just a different version of Spanish, like Latin American vs. European Spanish?