Strangest thing found in your A body???

Got a '63 Valiant Signet hardtop (Canadian) in '67. There was a bump in the carpet on the front passenger side. The carpet was worn down to the backing. Took off the sill plate and reached under the carpet. Pulled out a bolt with an attached washer. Was there from the factory and the original owner never even took the car in to have the 'bump' removed. Made the carpet look crappy.