I agree as well, a lot of people (family and friends) dont always understand the stress these things can put on you so they ask stupid questions or when your all stressed out and tell them they don't always understand why. Remember also that you have to get these things off your chest. Bad calls, shootings, chases, all these stress situations are accumulative and just pile ontop of each other, if you have too many situations that bother you and you don't "vent" or get somekind of release of them they will keep building and can be very unhealthy. I had this happen to me and I eventually went to a therapist just to have someone to talk with about it all and get an objective point of view. Most agencies have somekind of assistance program for this type of thing.
I am a Paladin, like the warriors of old, ready to stand on the line to keep others safe... A Sheep Dog, ready to protect the herd from advancing wolves!