I apologize for claiming Peak Dad last week. I was wrong, and am not ashamed to admit it. A man has created a car-horn for his armchair, that he might honk at cars passing by his house. I learned about it just now, and am wasting no time in sharing it with you.

From the description:

The tweet that spawned all this:
“My dad had a good idea. Sometimes when cars drive by your house they honk at you. But you can’t respond. That’s where House Horn comes in” – @jitka