As someone who does wrestling as a hobby, I know that it is more entertainment like a soap opera than it is a 'sport' per se. The moves look real, but to be honest it is on the person on the receiving end to 'sell' the impact. There is no way someone could get punched in the face repeatedly like they do in a wrestling ring and still stand. Just look at any UFC fight ever to see what happens when you get nailed in the face with a fist for a more realistic idea of what would happen. Though it is true about the gimmicky stuff like thumbtacks, it is generally done to a part of the body that can absorb them, like the back for example. Also, if you watch what happens when someone like HHH uses a sledgehammer, he will always lead with his hand in front of the sledgehammer itself to make sure it doesnt explode his opponent's face like it would smashing through a watermelon. There are so many small little secrets that keep wrestlers safe even though it looks like they are just about killing each other to the untrained eye.
I have been getting back into watching auto racing lately. F1 and Indy cars seem to be decent enough, but I cannot deal with the oval racing so much. It is just unnecessarily long and drawn out to hold my attention.