I don't think I've heard the hooter on my car yet.
Naughty
Must admit I dont use mine as often a some advocate.
I prefer the motorcyclist tactic , assuming you are invisible and always able to avoid them whatever they might ,or might not, do. I occasionally do an 'I am here' toot but dont rely on them reacting.
Rarely I do a retrospective " I was here, I hope you realise you didnt see me and need to improve" type hoot. (not strictly within the highway code
)
The standard ex horn sounds ok to me.