Originally Posted by
cellery
To everyone here who has actually hit a vehicle hard enough with their hand, u-lock, etc to where the driver noticed: has anything good ever come out of it? Incompetent and aggressive motorists don't learn a lesson in safe driving because some guy on a bike laid a finger on "their property".
Aggressive motorists, I quite agree. Incompetent ones who just didn't see you, because they didn't look, might just benefit from being alerted to your presence. But I'm just talking about a tap of the hand on the window or roof; I wouldn't use a lock or do anything that might damage the vehicle.