Yes, it does happen.The most common scenario is when a person is wandering around out in the woods and becomes a perceived threat to a dominate buck when he feels his territory has been violated. As a friend of mine has explained, those bucks are horny, and they're horny! People do get gored by
You can't domesticate a single animal - domestication is a process that happens over generations of animals as they learn to live with us and we selectively breed them for tameness to creat a new type of animal. Domestication is what turns wild desert cats into house-cats and wolf-like canines into dogs.
This question is a bit like asking why people enjoy ice cream, it could bet the flavour, or the texture, or perhaps even the temperature or some fond childhood memory that it reminds one of. Essentially it just depends upon the person who is hunting. However I