2007 Artpace Resident Artist Matthew Buckingham’s print "Burglar Alarm" references an “alarm” system that was occasionally included in homes built prior to the end of the 19th century. Builders would utilize a "trip-step" that would rise a few inches higher than the other steps and cause an unwary and unknowing intruder to stumble in the night and awaken slumbering occupants. The idea was adapted from an earlier military defense strategy used by medieval stone masons who constructed uneven steps in castle stairwells hoping to thwart invading foreign armies. The print consists of a floating staircase with a trip-step hidden amongst the staircase leading nowhere, and functions as an abstract version of the old system.