Interesting, the man page for Linux/su reads

---
This program does not support a "wheel group" that restricts who can su to
super-users
accounts, because that can help fasciest system admins hold unwarranted
power of other
users.
---

The NetBSD/su page reads,

Only users in group 0 (normally wheel) can su to root.


I'd like to be able to su from my user account, and still be part of the
'staff' group.
How can this be done?

I've been going back and forth between my user and root by logining in and
out..gets
tiring with this old HP keyboard :)