Спільний звук

This guy finished installing his wooden floor… then suddenly noticed a giant gap. At that moment, his soul probably left his body. But instead of panicking, he came up with a surprisingly clever trick. He sticks some double-sided tape on the floor, attaches a small wooden block, and starts tapping it with a hammer. And somehow… the floorboard slowly slides back into place like magic. Crisis avoided! His floor — and his sanity — are officially saved