Boiler tester Ben Healey and his wife, Marion, theorize that it might have been a group of random visiting tourists (" scumbags, " Healey calls them) , who'd taken photos of trains and asked about their monetary value.

锅炉测试人员本·希利和他的妻子马里恩推测，可能是一群偶然来访的游客（希利称他们为“卑劣之人”）。他们拍摄了火车的照片并询问过它们的货币价值。