I had a friend who was the son of a billionaire who threw elaborate dinner parties at his house and he very generously asked for $20 for each attendee. The food

I had a friend who was the son of a billionaire who threw elaborate dinner parties at his house and he very generously asked for $20 for each attendee. The food obviously cost more than $20 but paying the $20 made us feel like we weren't freeloading.