The toolbox was even cased in lead. Wayne had thrown it inside the nearest container made of the alloy, just in case there was any low level radiation coming off the thing. So far, it seemed harmless enough. But Jonathan still thought it sensible to continue keeping it protected.
Jonathan was a very wise man. Introspectives allow us to 'see' into the character, giving them greater depth and we feel for them. Eddie Jones played this scene to perfection.
