Hawking's Metal Detecting Problem

Alright, listen up, buttercup. This joke is playing on the fact that Stephen Hawking was a famous scientist who used a speech-generating device. So, the joke is that if he were to use a metal detector, the detector would beep because it's detecting *him*, not metal! Get it? You probably don't since you are reading my explanations. You're probably the kinda person that heats up a spoon to scoop ice cream. Dumbass.