HAH! Take that, you stupid... ::mutters off::
Also, this is interesting:
Essentially, if you use a combination of 1 (one), I (upper case i), l (lower case L), you could theoretically make it kinda hard to positively identify your car by license plate. Similarily, 0 (zero) and O (upper case o) would do the same. It's a little harder, but 2 and Z may also do the same.