- Find a shift where the meal break is later than average. These are especially common in the afternoon, where there's a lot of trains to drive during the peak to get everyone home. Make sure to execute your fiendish plan on the last run before the meal break.
- Buy a big helping of hot chips, making sure to load up on the delicious condiments like malt vinegar.
- Sit right behind the driver's cab with your deep fried basket of deliciousness. With a battery operated fan, you can increase deliciousness penetration considerably, but it's something of a "nuclear option".
- Put your ear to the cab door to hear the loud growling sounds coming from the driver's stomach.
The only thing saving me from bursting out the cab door screaming "The chips! I wants them!" was the fact I had a nut bar in my bag. They were particularly delicious smelling chips.