Ana Montalvo, right, and Elena Delgado, left, both parking enforcement controllers with the El Paso Police Department, learn to operate the Segway human transporters sporting spinner hubs at a donut store parking lot in downtown El Paso, Texas, Monday, June 12, 2006. The department will test two of the movers in the downtown area. The two-wheel movers can travel up to 12 miles per hour and go 24 miles between battery charges, said Shawn Desmond of Segway of New Mexico. (AP Photo/The El Paso Times, Rudy Gutierrez)

President George W. Bush, center, momentarily looses his balance while riding a segway personal transporter, as First Lady Laura Bush, left, looks on in front of former President George Bush's house, in Kennebunkport, Me., Thursday, June 12, 2003. Thursday is the former President's 79th birthday. (AP Photo/Steven Senne)