From: utzoo!decvax!harpo!eagle!mhtsa!alice!npoiv!npois!houxm!houxz!halle1
Newsgroups: net.physics,net.rumor
Title: Re: Equinocturnal Egg Standing Phenomenon
Article-I.D.: houxz.286
Posted: Thu Mar 31 17:15:17 1983
Received: Fri Apr  1 11:03:37 1983
References: teklabs.1860

I think it more likely that the egg was hard boiled, and you were tricked.