So where I live we have a problem with parking. Despite a large obvious space that is accessible and has a number of vehicles parked there, people have taken to parking their vehicles on the pavement, usually at the choke point where there is already a lamp post in the pavement. The lamp post constricts the pavement width such that a wheel chair won't fit, and only the narrowest of push chairs will fit. Parking a vehicle there makes it almost impassible except on foot if you stand sideways. It's driving me nuts, not just the inconsiderate parking, but which ever moron put the lamp post there. I've been considering getting some cards printed up with "you park like an arsehole" in a selection of languages and fixing them to the vehicles in question.
This is Amsterdam, all vehicles in this situation are bikes (or a close approximation, if you're charitable in how you define "bike").
We have to be careful, what we say now about the parking of cars on our streets, if we take the cars away, people will start saying the same about bikes. Sure parking a bike takes up less space than a car, but you're still using public land to park a private vehicle.
J