Today I met a sales rep at a car shop.

Tam's brake light was constantly on, so he and my brother assumed it was the spark plug. When we rolled in to the car shop, the following exchange occurred:

"Do you have a Honda?"
"Uh... yeah."
"You actually need this."

It was a tiny piece of plastic, barely bigger than a thumbtack that cost about $10.

"Everyone buys the plugs thinking that's what it is, then they come back because it doesn't work... But you really need this. It just goes between the pedal..."

She explained how to install it, I couldn't remember how. I do remember thinking that people probably think they know better than her because they're guys... I definitely empathize with that particular scenario.