Project Creating Robots that can Detect Emotion

Just what I need!
All I want is a robot that will pick up after my kids – that is it.
I am no way in need of one that knows when I am happy or mad – I would like to keep that info to myself.
Let’s stick the basics here and get a Roomba that actually works in stores and leave the emotional stuff out of the equation.
Just my 2 cents – for the emotional robots, I am not mad in any way, but I am a bit agitated.  🙂