Our cat thinks it's time to beg whenever he sees this one particular set of bowls we have. He knows when I am at the table eating cereal out of them, he gets a little dribble of milk at the end.
So, if we eat anything else out of said bowls, we get the "where's my milk" sad face! Even after showing him that there's no milk in the bowl and letting him get a whiff of it, he still looks at us as if to say "well you could get out another bowl for me and put some milk in it you know!!!"
And I tried giving him milk out of a different bowl one time - big mistake, it has to be out of the cereal bowl or nothing for "His Royal Highness King George of HIS Apartment"....because it's certainly not our apartment anymore! Reminds me of this saying....."Dogs have owners, cats have staff"