I love it… but it probably couldn’t be used to best advantage in the UK, where one may only use a horn:
- to warn other road users of one’s presence (not to tell them to stop texting or otherwise comment on their activities)
- whilst the car is moving (so not at traffic lights, for example) - that one’s a legal requirement
- between 07:00 and 23:30 - another legal restriction.
In short, the horn is not for general car-to-car communication - it’s emergency equipment.