I think I just fell in love with the Internet all over again. This time it was the 2m40 blog that had me hello. It doesn't matter that it is written in French.
RYou see, there is a notorious Parisian underpass that clearly says it has a clearance of 2.4m, evidently 4-5 truck drivers a month don't get it and lose part of their truck to the low bridge. Bad for them, great for us and the 2m40 blog.