Hi diesel,

I think the ladle topic is similar to the onion one, what is a standard size. Maybe it might be a good Idea if instead of using the term ladle we convert to tablespoons for clarity. Also instead of saying 6 onions we should weigh them so we all know how much we require.
As for the chicken question, if you are saying you have precooked some chicken and allowed it to go cold and later you are cooking a curry and want to use it, I think the rule of thumb is, as long as the chicken is reheated thoroughly its OK. Say you cooked some chicken, left it till later, then cooked a curry with it but didn't eat it straight away, you shouldn't reheat it again.
Hope that helps............ ;D