There is a small glitch with the app-admin/sudo/sudo-1.6.5_p2.ebuild: the ./configure line does not contain the --with-insults option, only the --with-all-insults, and therefore, it will not use the insults. You need both. I consider this to be a very important feature, so I would like to see it enabled by default :-) Thanks, Wout.
--with-insults Make the insules default. You can enable them in the sudoers file. Please read the "insults" entry at: http://www.courtesan.com/sudo/man/sudoers.html#defaults (scroll down about 3 screens)
Darn. Sorry about that, should have tried harder first :-/