9x144 - Late Show with David Letterman

Mailbag: a letter about having your name mentioned on TV is somehow morphed into a request to see Alan getting the crap beat out of him. Later on in the segment, a letter about tornados has the same result, as an already bloodied Alan is further laid to waste. Also, Michael McIntee does a remote Top Ten from Central Park, while Jim Gaffigan discusses food and cleanliness.