The misinformed man probably got his idea from this harmless joke and no one gave him the answer to the joke? :lau
If a rooster lays an egg on the peak of a roof, which way will it roll?
LoLol. I've never witnessed it, but I know it is in fact possible. I have a hen who acts like a rooster if that counts, but she doesn't crow :idunno plus I have a roo who acts like a hen (he doesn't crow!)