I'm a tech in a pediatric burn unit and March will be a year since I started working there. I've seen quite a few things that make mad/sad/frustrated all at the same time.
*Eight year old with 82% TBSA 3rd degree burns sustained from accidentally dribbling charcoal starter fluid on his clothing while lighting a grill.
*Four year old with 4th degree burn to his foot after mom got drunk and decided to let her kids sit on the hood of the car while she was driving. He fell off and was ran over, foot contacting the muffler. Foot was amputated at the ankle.
*Developmentally delayed 14 month old whose mom decided that "she just wasn't right in the head" and poured boiling water on her and left her in the floor, burned, for several hours until the dad came home and found her.
*Two year old that was scalded by being dipped in the tub by a familial foster parent's son for pooping on himself.
These are the ones that hurt me the most, I think. The child abuse cases.