Confusing ways to live your life
Wouldn't it be odd if your last name happened to be, say, Ford, and you wanted to open up an auto dealership, but you wanted to sell, say, Chevys instead of Fords? You could really confuse matters by naming your dealership "Ford Chevrolet."
"Hi, I'm looking for an F-150."I suppose even if you decided to sell Fords instead, there'd be the confusion of everyone thinking you were with the Ford family that founded the company. It could be awfully confusing if you incorporated your dealership under the name "Ford Auto Company" when you had to do all of your dealings with the Ford Motor Company.
"Sorry, 'Ford' is just our name. Might I interest you in a Silverado?"
Gerald Ford was from Michigan; I wonder if when he was running for Congress he won (or lost) any votes depending on the voter's feelings about the Ford Motor Company. Maybe early in his career he had keep telling people "Hi, I'm Gerald Ford - no relation to Henry."