true. when i cook rice i always think that 1 cup isn't enough...but i'm wrong everytime...wrooooong... But the good side is that i don't need to cook anything for whole week after that :D
It's also remind me when you want to make a romatic foamy bath and you spill too much soap and than you get this. It happend to me once.
1/2 cup per person makes plenty, is the rule I go by.