Comment by lproven

> an American fire hydrant or school bus

So much this. The first time one asked me to click on "crosswalks", I genuinely had to think for a while as I struggled to remember WTF a "crosswalk" was in AmEng. I am a native English speaker, writer, editor and professionally qualified teacher, but my form of English does not have the word "crosswalk" or any word that is a synonym for it. (It has phrases instead.)

Our schoolbuses are ordinary buses with a special number on the front. They are no specific colour.

There are other examples which aren't coming immediately to mind, but it is vexing when the designer of a CAPTCHA isn't testing if I am human but if I am American.