I’ve always wondered how bumper stickers came to be.
They’re a highly illogical invention, honestly: in one of the highest-stress situations I can expect to be involved in on a day-to-day basis (hurtling down a concrete thoroughfare in a two-ton steel box at 60 miles per hour), do I really want people to have to wrestle with my political convictions/sports fan loyalties? I’m sure someone along the line said, “This vehicle that helps me commute quickly and efficiently is great and all, but why won’t it announce to everyone how great my honor student/running ability/dog is?”
In the same way a “If you’re close enough to read this, back off” bumper sticker encourages us to avoid the car it’s on, there are shutdown cornerbacks who wear the goose-eggs they tack onto wide receivers like badges.