Yes, roosters are the ticket! I'm glad my husband has no compunction to spare any feelings, it's all black and white with him, you are either right or you're wrong. It's interesting but my first thought was your fil was filching eggs, or trying too? I know the rooster and hens watch me when I go in there and I have to hide the eggs I take, they know what I'm up to, maybe that was the start of it all...although I was sooo excited because one hen is off and on again about laying and she'd layed her egg too. (I do distract them by giving them more food in a bowl, so maybe that day I didn't, subconsciously)
The roo was really out of sorts, but it still makes me smile....