Interesting question on impact of emotions on metabolic rate, yes apparently it does up it, but the first few papers I found on the subject was research carried out on people in asylums. So maybe a bit extreme.
The other year I had a pair of guys working on the drive here who can best be described as being like letting Laurel and Hardy loose with a digger. Boy was I spitting tacks at one point. I was a participant on an experiment into the effect of weight training at the time and I discovered how just 30 minutes of working out with maximum weights was enough to turn that round so that I could laugh at them.