How to catch a snoopy sysadmin?

[99700000]

In article <1991Mar31.011850.432 at crowfix.uucp> ian at crowfix.uucp (Ian Smith) writes:
>I am posting this for a friend.  His sysadmin is a bit of a snoop,
>and may be reading everyone's email.  Does anyone have advice on
>how to catch him?  We were thinking of snooping ourselves (all
>users know the root password).  Is there, perhaps, some way to keep
>track of all root commands, or to track root terminal i/o?

Everybody knows the root password and you're worried about one snoopy
administrator?!?!