re: brainless ped danger areas, it's really worth having a bell because you can usually spot the potential lemmings preparing to wander across the road without looking, giving you time to start tinging your bell (I like to start quietly and calmly and crescendo into a violent 'what the HELL are you doing you fuckwit' in bell language) from a distance, which allows enough time for their slow brains to eventually react to the sound of the bell and move out of the way/not step into the road in time for you to pass without incident.
re: brainless ped danger areas, it's really worth having a bell because you can usually spot the potential lemmings preparing to wander across the road without looking, giving you time to start tinging your bell (I like to start quietly and calmly and crescendo into a violent 'what the HELL are you doing you fuckwit' in bell language) from a distance, which allows enough time for their slow brains to eventually react to the sound of the bell and move out of the way/not step into the road in time for you to pass without incident.