When you pass out from eating rotten food while standing on a staircase, you fall down the stairs (likely petrifying you if you are carrying a cockatrice corpse) and “find yourself at the bottom of the stairs” when you come to.

2% of the time after getting the “Blecch! Rotten food!” message as a Tourist, you get one of the following YAFMs:

• “This is not as the travel agency described it!”
• “The native cuisine is not entirely to your liking.”
• “Definitely authentic native cuisine.”
• “Ugh! The local food explains the dispositions of the locals.”
• “This must be that ‘hate cuisine’ you read about.”
• “Where’s the garlic and steaks you heard about?”

Any corpse which has touched sewage is automatically tainted if you try to eat it.

Perfectly fine uncursed food should not make the hero pass out.

Any comestibles death-dropped by an F monster are rotten when eaten.

Blessing a corpse prevents it from being tainted or rotten (the “Blecch! Rotten food!” effect).