It would be cheaper to tape his mouth shut

How to guarantee you'll need a new car:

Sit down with your wife to discuss your finances. Talk about how certain things will be paid off by a certain date as long as your car keeps running well, therefore keeping you both out of a second unnecessary car payment. Specifically point out that there shouldn't be anything to worry about in that department unless "the transmission goes".

Watch your wife visibly cringe because she thinks you jinxed things.

Scoff at your wife's unreasonable jinxing fears.

Maybe make a crack about how she worries too much.

Come home from work one afternoon less than a week later and mention how your car won't go into reverse anymore.

Start making plans to purchase a new car.


How to keep the peace in your marriage:

Start listening to your wife more. Or invest in a lot duct tape.