I am so sick of having to swerve the pushchair or move out of the way so that some idiot on a bicycle can avoid the traffic by cycling on the pavement and expect me to stand aside with my kids/pushchair/shopping so that they can ride past. Sometimes (when I am not with my kids) I stand firm and don't move out of their way so they have to get off or be patient and wait until I have walked past.
When I was quite heavily pregnant I was walking along and this guy on a bike came zooming up and shouted "move" and just pushed past me. Nob.
Grrr. Hate them!