Behodar:
Kit Kat seems to have a "thing" for putting "share" on packaging. A little 60(?) gram bar has "share bar" printed on it. Who in the world is going to share that?!
As a child my mother insisted my siblings and I share everything equally... if I brought home one of even the smallest chocolate bars (e.g. from a birthday party or something), we would divide it into four pieces using a sharp knife. Or six, if our parents wanted a bit too.