An Assassination Attempt
A neighbor overheard me complain about the groupies who crowded the streets.
The filming for Johnny Depp's latest movie was done in my hometown, and on my way to my friend's house I caught a glimpse of him through the heavy jackets of dedicated viewers.
The plan for the day was to mess around with our new "airsoft guns":http://en.wikipedia.org/wiki/Airsoft in the backyard, and my friends had already begun by the time I got there. A neighbor overheard me complain about the groupies who crowded the streets.
Minutes later, the police dropped by, saying they'd received a warning call--someone had tipped them off that we'd be doing an assassination on the actor.