So, self serve checkouts have rules First I was told I couldn't put my trolley in the automatic gate way, then I was told to scan the big things first, the third time, I stepped back and said "unless I get an instruction manual,.I'm on strike" ... She finished for me ... Giggles I really think the trolley in the glass gate was the main issue, it was banging ... I didn't notice Hugz & xXx