gcorgnet:Yeah, that one really gets me...there's always the "When will I get my share?" thing, if the older one has gone on a school trip or to a movie/concert etc...it all works out pretty even, so I don;t know what they are complaining about.
For me there are a bunch of things about (my) kids I find irritating.
First thing that comes to mind is the constant comparison between siblings. We (parents) make a conscious effort never to draw comparision between siblings (we h ave 1 boy, 1 girl) but for some reason, they constantly look at what/how much/how little the other one has... That or the random pointed questions: "Will xyz also be allowed that?"