act® advanced. okay, so we ve all been there, standing with your hand out to shake someone else s and you are ignored. that happened to chicago s mayor this week. jeanne moos shows us the embarrassing moment. reporter: this is what a nice warm handshake looks like. and this is the handshake from hell, the dreaded snub that happened at a town hall meeting about chicago s budget monday. mayor rahm emanuel extended his hand and the man shook his hand. sometimes the candidates snub each other. like when the candidate in red