It's my fourteen-year-old brother.
Sometimes my brother can be nice and fun, don't get me wrong. He likes to pretend he's the Hulk from the 1970s show, or make fun of cheesy movies with me.
But he's got a big problem. He's obsessed with being cruel to animals.
He's done things like kill squirrels, yeah. Recently, though, he did something he's never done before. And the awful thing is, it didn't surprise me.
My aunt is living with us. She has a pit bull; really sweet dog, friendly, small. It's kind of hyper, and barks a lot, but other than that, she's a great dog. Unfortunately, my brother hates the barking.
Apparently, he started out squirting liquid soap into the dog's eyes to shut it up. I told him to stop that when I found out. He stopped that... but then he started squirting it in the eyes with alcohol. I had no idea until a few days ago.
My aunt said that her dog had something wrong with her eyes. So my mom went out to see, and she came back and said, "She must have gotten into something in the woods".
I reminded her about the liquid soap thing, and she confronted my brother about it. He told the truth; as it turns out, he had squirted alcohol in the dog's eyes four times in the last two days.
We took the dog to the vet, and we found out from him that she could have gone blind if we had come into the vet a day later. The dog's eyes looked terrible; all bright red and bloodshot, sunken-in, weeping this pale green, sticky liquid. The vet gave us antibiotics and painkillers, and the dog is looking a bit better now.
I want advice on what to do with my brother. He's just a terror most of the time. He didn't shed a single tear when our dog died (not that it was surprising; he was mean to her), or when our cat died. He doesn't show any sympathy to the ones of us who 
are grieving.
Any advice would be greatly welcomed, except to take him to a therapist or doctor of some sort. Been there, done that. Did no good. 
