BTW, re: the guy who did the email prank above (about whom there were stories involving a hijacked train in college), a couple of years later he was at it again....
The previous winter, one of our colleagues was selected to be the head of a significant financial regulatory agency. He was a high flier, but frankly, not a very nice person, so there was something of a sigh of relief in some quarters when he left. In any event, when the guy took his new position, a lot of people in the industry thought he was a lightweight, and one law firm tried to pull what he perceived to be a fast one on him. So, he decided to show them that he was not a lightweight by issuing an asset freeze order on the law firm and its partners, for making deceptive statements to a federal agency. As you might imagine, this caused something of a stir, and people took him a little more seriously after that.
So, come the next April 1, our resident prankster reached out to our former partner/now bigshot agency head, and got him to "sign" a bogus asset freeze order for our firm and its partners, a copy of which was placed on each partner's desk for their arrival on the morning of 4/1. Most of the partners got that joke, but there was a not insubstantial number who thought the guy was just mean enough to do something like that to his former firm, and had to be walked back from the ledge a bit.