You're scanning the queues in the supermarket (let's say Tesco to keep the arse-putter happy) looking for a quick escape, and you spot a relatively small trolley load being placed on the conveyor. Thinking you've found a fast route out, you begin unloading your goods behind. Then you notice it. Multiple dividers in the shopping, and you realise you're stuck behind a split loader. They generally pay for each segment of the goods with cash, and will fuck about in their purse (because these cunts are predominantly female) looking for the odd penny to allow exact money to change hands. The quick escape is fucked, and you have to just watch and endure the tedious fucking transaction.