Angel, I think you might want to change XXI (21) to XIX (19) or XXIII (23) because 21 is taken. =( 

=D Oooo I just noticed that 50 is L. Death Note themed char?

A fear related number I can think of is no. 17 "XVII". It has the [url=http://mysticalnumbers.com/number-17]anagram VIXI[/url] which means I have lived that is usually carved onto tombstones.