My encounters with the law have all been pretty tame... "What, me, speed, officer?"
Here's a good story from my husband, though.
MIT has a grand old tradition of hacks - creative pranks, such as putting a campus police car on top of the Great Dome, transforming a lobby into a cathedral, etc. There's a whole code of ethics, chief of which is that you must not destroy anything; the administration and campus police pretty much turn a blind eye as long as the code is followed.
On Halloween of his freshman year, Mr. aephi alum and a few of his friends decided to pull their first hack. There is an archway on campus from which they decided to string a giant spider web, complete with spider. So they got a lot of string, assembled the web, made a styrofoam spider, and late at night, went out to the arch. It took them a good half-hour to get the web strung up, and just as they finished - up came a CP car - lights, siren, the whole bit - and two CPs jumped out and caught them red-handed.
After the group explained what they were up to, the CPs called back to headquarters, and the
chief came out to see what was going on. The group figured they were in deep trouble if the chief was on her way. But she took one look at the web and simply said: "Cool!" Then she turned to the group and said, "That's a good hack, so I'm going to let this go. Just one thing, though: You
are all MIT students, right?" They all nodded. "Good," she said, "because if you turn out to be from Harvard I'll
really be in trouble."