  I once took over the system administrator (of which the Oracle
and SQL Server servers were a part) at a mid-sized firm. The
outgoing administrator had about a two- week-long scheduled
overlap with me, but was angry at the company and told me "hey,
I know this is going to be hard on you, but I want them to know
how important I was. I'm not telling you where anything is or
what the passwords are. Good luck!" He then quit that day.  It
took me about three days to find all of the servers and crack
the passwords. Yes, the company tried to take legal action
against the guy and all that, but he moved back to his home
country and so largely got away with it.  Obviously, this isn't
the way to leave a job. Many of us have changed jobs in the
past, and most of us try to be very professional about the
transition to a new team, regardless of the feelings about a
particular company. I've been treated badly at a firm, but that
is no reason to leave a mess for someone else. So here's what
you should put into place at a min