Fort Worth improvisational comedy troupe Four Day Weekend celebrated its two-year anniversary a few weeks ago, but we let the event pass without any mention. We were getting tired of plethora of improv comedy groups in the area, and still are, in fact, Recently, however, we found a missive from the Four Day gang that would have – and has- made us rethink our position for a moment. The letter itself, which somehow never made it across our desk before, wasn’t all that noteworthy, just a photocopied facsimile of a ransom note promising that the members of Four Day Weekend – David Wilk, David Ahearn, Frank Ford, Troy Grant and music director Paul Slavens- "would kill one hostage every day unless our demands for press coverage" are met. Cute. But the kicker was the photo included with the message, Polaroid of one of the "hostages," swollen and bruised, holding a copy of that week’s Dallas Observer. And in the corner of the photo was a smudged, bloody fingerprint. Bravo, fellas. Four Day Weekend performs at 9 p.m. every Friday and Saturday at the Four Day Weekend Theater (the upstairs theater at Caravan of Dreams), located at 312 Houston St. in Fort Worth. Tickets are $10. Call (817) 226-4DAY.