"Expert" in Scamp's pet shop: "You can house an 8-month-old corn with a two-year-old corn, but if they're in the same hiding spot the two-year-old could 'sit' on the 8-month-old, causing it to suffocate."
This could be true, but he didn't mention that the two-year-old could eat the 8-month-old, or that one or both of the snakes could get stressed out and go off feeding, etc.