I was poking around on the school computers and I found a (world readable) script for joining the AD (these were macs, so there was some black magic going on),

I was poking around on the school computers and I found a (world readable) script for joining the AD (these were macs, so there was some black magic going on), with an username and password in it. Turns out that username and password was the administrator account on almost every server in the school, which were all accessible through remote desktop. Yeah, that was a good time.