Hi, Dave Thomas writes: # Now I'm normally the last person to want to add methods to the core, # but... "Normally the last person to ..." as in "normally the *most recent* person to ..."? :-) # Does anyone else think that Integer#odd? would be useful? Wouldn't Integer#even? be even more useful? Actually, I think that you should have both methods for symmetry of simple/natural expression and symmetry of expectation. Conrad Schneiker (This note is unofficial and subject to improvement without notice.)