Where are sudo incidents reported?

Question

Attempting something devious on my machine leads to

ryan@debian:~$ sudo EAT_ALL_THE_COOKIES_BEFORE_DINNER
[sudo] password for ryan: 
ryan is not in the sudoers file.  This incident will be reported.

Where is this incident reported, and how do I get the log of all the nasty attempted commands?

Answer 1

Nevermind, I just found the answer in the alt-text at xkcd:

Replace root with your username, in my case ryan, so the log is found with:

cat /var/spool/mail/ryan