Not your head, the striped rat's. An added benefit, if you ask me.
The Dorito is a nice touch. Are you a Chef in real life?
I worked for a lowend employer years ago and we had rats in our breakroom for a short period of time. I started out with mouse traps because I didnt know there were rats until i started pulling out half eaten mice from the traps. I moved up to rat traps and the mice could eat the peanut butter from the trigger with out setting it off. So using Doritos from the vending machine helped to weight the trigger just enough you could blow on it and set it off. It works at home when you get a mouse just break off a Dorito or cheerio and they have to work at it. I have sucessfully used this on squirels that got behind my chimney and in between the floors. Only I used peanut butter with a piece of seed corn stuck to it.