Watch a series of videos showing things you really don&#39;t want to see at the gym, on Yahoo Screen UK.

Gym Fails

I don't know what kind of exercise this guy was trying to pull off, but it was destined for failure. Great faceplant though!

Yoga Ball Treadmill Faceplant

While working out at a Planet Fitness location, Ugo Arimo catches footage of a man eating pizza while working out! What's the most ridiculous thing you've seen at the gym?

Guy eats pizza while working out at fitness club

<p>Tor-Martin Trongmo Tangen was attempting a PB in the clean and jerk lift when he forgot the golden rule: breathe. As Tangen finished the lift, his brain lacked the oxygen to keep conscious, so he collapsed to the ground with the weights on top of him. Tangen said he couldn’t remember falling: “Suddenly there were numerous people standing around me. I quickly came to myself, but didn’t realize what had happened before I actually stood up.” Credit: YouTube/On Hands Channel</p>

Tor-Martin Trongmo Tangen was attempting a PB in the clean and jerk lift when he forgot the golden rule: breathe. As Tangen finished the lift, his brain lacked the oxygen to keep conscious, so he collapsed to the ground with the weights on top of him. Tangen said he couldn’t remember falling: “Suddenly there were numerous people standing around me. I quickly came to myself, but didn’t realize what had happened before I actually stood up.” Credit: YouTube/On Hands Channel

Weightlifter Blacks Out During Lift

<p>Ben Leyland likes to push himself at the gym. However, he might have pushed himself too far here when he attempted some Olympic and crossfit-style lifting… Credit: YouTube/Frombrostopros</p>

Ben Leyland likes to push himself at the gym. However, he might have pushed himself too far here when he attempted some Olympic and crossfit-style lifting… Credit: YouTube/Frombrostopros

Man Has Embarrassing Gym Fail

Doesn't look like he's going to get much done if he's doing workouts like this!

Bizarre Workout Technique!

He obviously though he was awesome at whatever he was doing!

Guy's ridiculous gym stunts

This amateur gymnast will definitely be feeling this back flip fail for a few days! That had to hurt!

Balance Beam Backflip Fail

Testing out a yoga ball on a treadmill always leads to disaster. She learned her lesson!

Girl Wipes Out On Treadmill!

This has to be the most entertaining treadmill workout you'll ever see. Check it out!