ouch

Everyone, repeat after me: I am not Spiderman. I am not Spiderman. I am not Spiderman. 

Now, read this guy's TIFU story that ended up in too many injuries for one body and repeat it again. Although this is mostly some Amazon shop's fault for selling a faulty grappling hook, the guy probably could have chosen a better place to test it out for the first time. Lets hope he doesn't make the same mistake twice.