priest attached to helium balloons missing

SAO PAULO: A Catholic priest who floated off under hundreds of helium-filled party balloons is missing off southern Brazil.

Rescuers in helicopters and small fishing boats were searching off the coast of Santa Catarina state, where pieces of balloons were found on Monday.

http://www.smh.com.au/news/world/priest-missing-in-balloon-flight/2008/04/22/1208742940671.html

Somebody made a slight miscalculation, since any priest's head is utterly devoid of any filling, hence the lift differential of that vacuum caused the accident.