Stape

Stape: noun. A staple which is coated in a thin film of adhesive, which also makes it sticky. This office supply was developed in the 1950's in the US by Herbert Williams of Reno, Nevada and became an instant success. It was only later discovered that the adhesive Williams was using emitted a surprising amount of beta particles, despite not containing any radioactive substance and to this day remains one of the greatest scientific office-related mysteries.