If you live in a bike friendly city, then the sound of cyclists ringing their bells incessantly to warn you of their presence isn’t uncommon. Hearing it without the bike attached might be, though.
The rather interesting Japanese fellow in the book has a standard bicycle bell and uses it to warn people he’s behind them. The results are near Pavlovian, because as soon as the people hear the bell, they instinctively move out of the way. In most cases they don’t even look behind them.
At one point he goes into a store and, upon reaching a worker unpacking boxes, rings the bell. The worker doesn’t even look up, he just moves the boxes out of the way.
Is it annoying? Yeah, kinda, but it’s also an interesting experiment.