I believe the way you're facing when you enter makes a difference.

There's this great article on how the ghosts target you:
http://gameinternals.com/post/2072558330/understanding-pac-man-ghost-behavior

With these simple rules for their behaviour, I guess it's not too surprising that there's one spot in the maze where, if you're looking the right way, their pre-defined paths never reach you.

Stephen Fry. Although this might be the first contact equivalent of showing off.

Oh, wait, I have an idea. Let's burn books and then compress the ashes to make diamonds! That would show the world how much we love books too!