Year 11 Physics lesson at a grammar school discussing light, photons being massless and how nothing with a mass can reach the speed of light.
"Wait, can't you just sit on a photon?"

Edit: The same person, when learning that the mains is AC current - "If the mains is AC, why doesn't my computer keep switching on and off?"
"Wait, can't you just sit on a photon?"

Edit: The same person, when learning that the mains is AC current - "If the mains is AC, why doesn't my computer keep switching on and off?"