I just ran across this an Google App Engine article that uses that funny backwards \'P\' character in some URL\'s (look near the top of the first code box). You know that charac
What happens is that the page contains the sequence ¶ some browsers (Chrome at least) interpret that as if it was ¶ the escape code for the symbol ¶. Funny browser behaviour, but the page should not have contained raw ampersands.