Big arm
Let this be a cautionary photograph for anyone here who is thinking about going to the gym. Make sure that you do not just focus on one muscle as this man did, but that you exercise the entire body. It will benefit you greatly in the long run, trust us on this one.

If you do not want to take our word for it, just check out this guy who made an awful mistake and focused only on his biceps. This is an example of just how not to work out, in the future his bicep muscle could burst as well or be badly injured from overworking just one muscle.