Hmmmm... my lot don't normally say anything. I forget it very, very rarely, but when I do, they don't normally remind me! The only thing that might make me aware of it is that they get up as soon as I do a lot more than normal.
But then again, our dogs are not used to a set meal time as such. Their two meals a day are in the morning and evening, but can be anything from 7 to 11 am or even noon and from 6 pm onwards... So they don't nag at a certain time or at any time at all (and I must admit, I wouldn't like that either).
Vera