Train vendors between Colombo and Kandy safe to buy from or scam

The train vendors are absolutely one of the best parts of Sri Lankan railway culture! They are hardworking locals, not scammers. It is generally very safe to eat the hot, freshly fried snacks like wade (lentil fritters) or roasted peanuts. They might charge a tourist 100 rupees instead of 50, but it is hardly a scam. Just enjoy the snacks with a hot sweet tea.