My chemistry teacher in senior school back in the old country had a Heinkel bubble car. He regularly found that inexplicably it had made its way into the chem lab. Half a dozen husky students could manhandle it through the double doors into the lab.
Ha- that reminds me of the AH Sprite I had in Highschool. My 'friends' on the footlball team used to think it great sport to relocate it in front of my locker.
-JP