[socksy]

And some pedestrians are maniacs, but most of the time only are a danger to themselves. OTOH I have crashed into a lamppost from a pedestrian suddenly stepping into a bike lane from behind a utilities box.

I think we should assume that stupidity is evenly distributed and mode of transport doesn't affect it much, just the results.

[com]

Momentum is probably more of a correlation than mode of transport. Real world experience: hit by a bike versus hit by a moped, each time on a “vehicle free” footpath. One was not like the other.