We noticed our Rhode Island Red hen (about 32 weeks) was laying eggs and then turning around and eating them. The rest of our flock appears to be leaving their eggs alone, but obviously we're worried the habit will spread. So after Googling, I read in several places that you could fill a blown egg with mustard to help break the habit. They said chickens HATE mustard and it will help teach them eggs aren't good. So we filled two blown egg shells full of French's and placed them in the nesting box over night, we kept them in their coop and small run all morning, and went to check later in the day. BOTH mustard filled eggs had been eaten! We were shocked. Everyone said chickens can't stand mustard. So now we have two fake eggs in their boxes, and we're going to try and catch the behavior in the act, but any other insight or advice would be greatly appreciated! We're urban keepers with a small flock of 8, so we'd like all the eggs we can get! They are on 16% granule layer feed with Oyster shell supplements (and ground shells, when we have them), so I don't THINK it'd be a nutritional thing, but this is new to me. Thanks in advance!