Definitely recommend cheapy comedy bulb horn for commuting runs on shared paths and the like. Techno-zombies (phone users, i-pod users, doggy walkers with kilometer length leads etc) don’t hear bells unless you are within one wheel’s diameter proximity of them (or their pooch), no matter how far away you start ringing.
The HONK-HONK of the comedic horn works from much farther away and seems to disperse any anger at being warned to “Please move out of the way (for your own safety, of course …. 😉 ….. )!” The modern Zombie seems to have not been brought up to recognise a bike bell, but is at least curious enough to turn around at the louder sound of the horn.
In a perverse sort of way, it also occasionally provides the owners of such horns some light relief as the wandering Zombie does a John Cleese like dance to leap out of the way, presumeably thinking they are about to be mown down by a truck …. even though you are still 30 metres or more away from them when they perform their silly walk impersonation ….. 😆
All-in-all a very good couple of quids worth of safety gear.