When I was in Canada, it was really cool to see everyone using the metric system. But what made me a little nuts was how everyone pronounced the word kilometer. Is it kil-AW-meter or KILL-o-meter?
I make my case for the latter in the video below. If you disagree with me, then I can state quite objectively and maturely that you are wrong wrong wrong.
When I was giving my first talk in Canada I actually mentioned this, and got a lot of applause from right-thinking people. The others were strangely (ominously?) silent. Perhaps they were tuning up their kill-o-meters.
Note: in the video I use the spelling decameter. I have seen it as dekameter as well, and in some dictionaries it says decameter is the old way to spell it. Well, maybe. I still like it, so I used it. If I can rant about pronunciation, I can rant about spelling, too.