this bit from PhD Comics, on the same topic, is a classic http://www.phdcomics.com/comics/archive.php?comicid=1162 http://www.phdcomics.com/comics/archive.php?

this bit from PhD Comics, on the same topic, is a classic http://www.phdcomics.com/comics/archive.php?comicid=1162 http://www.phdcomics.com/comics/archive.php?comicid=1162