To trigger the randomness, you may have to force a reload.
However, you should only have to do this once per session.
It's possible that putting multiple pictures of one's self
on one's own web page may seem a bit -- well, vain.
However, once you've seen some of them,
you'll soon come to realize that there's no way
that vanity could be a factor here.
If you want to cheat and see them all
(not recommended and no fun), click here