Balloon Release - Sky High

We heard a very funny story a while ago about a Gentleman wanting to organise a Balloon Release for an Event he was doing and required a Balloon Drop Net. The Gentleman prepared all of his Balloons and filled the Net Full to the Brim. Once full he raised the net to the roof. Now during a Balloon Release the Balloon net is normally released to allow the Balloons to fall from the Roof to the ground. To the Gentleman’s horror when the Net was released the Balloons went Sky High and stayed floating at the top of the roof, leaving all the People stunned. When rubbing his head, the Gentleman discovered that he had filled the Balloons with Helium instead of Air!