A home game tradition (carried over from the original Mile High Stadium) is the "Incomplete Chant." At Bronco home games, when the opposing team throws an incomplete pass, the stadium announcer will state "Pass thrown by opposing quarterback intended for opposing intended receiver is..." at which time the fans complete the sentence by shouting "IN-COM-PLETE!!". In a tradition carried over from Mile High Stadium, the stadium's public-address announcer will give the final official attendance for the game, including the number of unused tickets; in response, Broncos fans "boo" the no-shows. During the stadium's first years, in another tradition that was carried over from Mile High, Broncos fans on one side of the stadium would chant "Go" and fans on the other side would respond "Broncos," back and forth chanting for several minutes. That tradition has since died out. Another long-term tradition is famed rowdiness of fans seated in the "South Stands," although this tradition has diminished significantly as well. Finally, especially in the upper two decks, the fans create their own 'Mile High Thunder' (and warm themselves) by stamping their feet on the stadium's floors. The old Mile High Stadium was built with bare metal, and the 'Thunder' reverberated readily. The new stadium was built with steel floors to preserve this unique acoustic feature.