I stopped dead in my tracks before the west bridge at canal basin harrison gardens as the oncoming cyclist was pushing his bike through the tunnel with a table balanced on the saddle. his LHS pedal also fell off. Maybe he had removed it to stop it hitting his leg?
Anyway the whole thing was working ok. No way through which made it strange that the cyclist behind me should not stop but plough on and then realise what was happening. But nobody is perfect.