difference between an engineer and a non-engineer

A non engineer, upon realizing she has left a tube of chapstick in her sweatshirt on the radiator will remove the tube and wait for it to cool off before opening it. An engineer will feel how warm it is and still open it to verify the state of the contents. Btw, chapstick melts into a liquid form, yet also dries extremely fast. Especially when its all over the floor.