When you've been driving 50 years and more, you develop a certain set of reflexes, covering all aspects of vehicle operations. For me, one of those reflexes is that one sounds the horn by pressing the center of the steering wheel. If you're driving a 1952 MG TD, that's a problem! MG thought it was just fine to put the button (which is apparently called the "Horn Push" in all cars, not just MGs) on the center dash. Here's a web photo showing that horn push: