Extreme Corner

A little known fact

An extreme corner is one that usually goes by un-noticed.  It is often so extremely slight that it appears to be a straight line. Other types of extreme corner turn the traveller through very nearly 360 degrees and spew them out into almost the same direction as they started.  Many people are unaware of the rotational aspect and claim to be walking directly towards their goal.

This topic is fully covered in the newly published book "The unwritten guide to Sat Nav"

http://www.lulu.com/content/paperback-book/the-unwritten-guide-to-sat-nav/10945529