You are aware that your father created this.
Despite what the rest of the family thinks, Dad was born to travel. He could get to work in under ten minutes and squeeze himself into the tiniest of spaces. His driving talents came in handy on occasion. But it was, for the most part, too expensive.
He was hesitant to spend money on a new set of side mirrors. They weren't sold individually, according to the mechanic. He'd have to buy both if he wanted to buy one! That made him think. Why not use what he already has, or, in this case, what his wife already has?
