Tom, unless I've got something very very wrong in the years I have been reading your blog, you're not "happy when people injure themselves". If you came over to my blog and saw that I had chopped my own leg off in a freak tin-opener accident, this would not fill your heart with joy. You're happy when people have injured themselves and you can do something about it, even if that something is "only" comforting their relatives or making sure they don't die alone. You're happy when it turns out that there is a point to you turning up for work. That's not unusual in the least.