I sat reading through some of the comments made follow the arrest of our erstwhile cyclist who rather than using his noggin for something useful decided to bang on the car next to him. Stupid! But Urban Cyclists are not the brightest bulbs on the tree.
They offer really meaningful stuff like ‘screaming‘. I guess fat women have got that sort of thing down (in terms of technique) but frankly it seems a bit overwrought.
Why Not Just Whistle?
Buy one of these and I guarantee you will be noticed. They are designed for use by folks lost in the wilderness who are trying to attract attention from searchers. They cost $5. End of story.
Now if you are an Urban Cyclist you can go back to dreaming up new ways to be a victim.
Save the banging on cars for your fellow idiots. You on the other hand have learned to put your lips together and blow.