A retail workers' delight

So here's the deal. Customer wants to buy items in shop. Customer puts items on counter. Sales Assistant scans items in and helps customer put items in bags. Sales Assistant asks for money. Customer places coins on counter, sometimes out of reach of Sales Assistants' general reach AND when Sales Assistants' hand is outstretched waiting for money. Sales Assistant has to annoyingly pick each coin off the counter when customer could have dropped them straight into Sales Assistants' hand. The end deal? Sales Assistant begrudges the unknown, or sometimes known, customer when the scenario isn't even a life or death situation. The lesson? Sales Assistant should not dwell on stupid minor occurrences in daily life and work, and customer should open up eyes a little more and ask themselves what they would like if they were in Sales Assistants' position!