While I respect the occupation you are in...
I will have to say, to get joy out of a Tazer weapon on a person is complete blasphemy! While I do live in Dallas county, I see alot of officers abuse the occupation. This bothers me as a citizen. It bothers me to the extreme that I'm considering working for the State of Texas as a Law Enforcement Investigative Officer... as it is termed... Internal Affairs.
I have a really great friend who works for DSO and has been with DSO for about 15 years and we talk about some of the things he encounters in the field. Never has he once stated what you have said. There is no joy in this.
You should be humbled and not joyed.