I know this may offend some of you but if you need a horn like that than you are not using your brakes and being a responsible rider. Also it is outright annoying for most of the people around.
On a bicycle one needs to watch out for vehicles and not assume that they will always see her/him. If you see a car merging then slow down and try to make eye contact if you cant then use your brakes and stop.
If you see pedestrians on the path again slow down instead of raging and ringing your bell.
This one time, I got out of the office and I was getting on my bike. From a far (but not exactly where) I heard ringing and "excuse me". A couple of seconds later, even though I was barely on the edge of the bicycle lane the rider almost hit me and was screaming. If that rider used her brakes instead this would have never happened.
Understand that you are riding a bicycle not a car, stop being a copy of those raging drivers, ride responsibly, share the road, don't be afraid to stop when you need to.