I was out in my wheelchair today, had to join a couple of queues at the pharmacy and so on.. so i wheeled up to the counter, then had to leave.. which required a slight reverse before i could spin the chair ( it's hand propelled not an electric one).. both times i nearly squashed the toes of the person behind me.. who had got so close the could have been holding my handles.
It's like having someone breathing down your neck then getting pissed when you accidentally step back on their toes.
I know its likely they don't think, or don't realise.. so for everyone not familiar.. please leave us space, those things can spin pretty well, but often we need room to turn, which sometimes means a slight backwheel to give us space to turn.