There is always someone buying multiple lottery tickets/scratch cards in UK local stores and, yes, it does bring everything to a standstill.

Other regular delays seem to come from staff being perplexed by the complexity of the checkout system.

Also, mostly middle aged women being taken by complete surprise they are being asked to pay for stuff which leads to much fumbling around looking for purses and wallets and then they'll insist on counting out the exact change.

Then the constant 'Do you need a bag?', 'Do you want a receipt?' 'Do you have a stupid loyalty card?' routine.

Bring on automation please and make the world a much more happier place!