I'm sure this might raise a few eyebrows.
http://tinyurl.com/3x5u44v
or
http://blog.makezine.com/archive/2010/11/emergency_bike_pump_sucks_air_from.html
http://tinyurl.com/3x5u44v
or
http://blog.makezine.com/archive/2010/11/emergency_bike_pump_sucks_air_from.html