This was long before the days of drive-through restaurants and, besides, we don't Glasgow Corporation tram drivers were ever allowed to eat or drink on the job.
Such was the safety record of the 'caurs' that such incidents were a rarity, and always drew a crowd. This trolleyed tram was soon surrounded by rubberneckers, and not all of them children. Most of the people in the photo are adults, with many of the men wearing gaberdine macs and felt hats. You don't see those styles in today's Govan.
Once the tow vehicle arrived, you can bet the driver had some explaining to do back at the depot.