Dave Scott, 57, was waiting to pick up his daughter at the railway station in Cambridgeshire on Saturday evening when he says a man with a knife approached his vehicle.
After Saturday evening's mass stabbing onboard a train travelling from Doncaster to London, rail services have seen increased security. But long-term security might not be as easy.
Brave rail worker Samir Zitouni, 48, is understood to have grabbed the cookware from the galley kitchen and put himself in harm's way to save people's lives.
The UK Office of Rail and Road found last month that the overall number of assaults on the rail network rose from 3,211 in 2014-15 to 10,231 over the past year.