I am over here at the gym and saw the funniest thing ever. I'm sure you all know what the weight assisted pull up/dip machine is. For those that don't it works like this. Wherever you set the weight it takes that amount off of you. Example, if you weigh 200 and set the weight assisted at 100 then you actually pulling up or dipping 100. Anyway I just watched a dude that weighed around 150, he was doing pull ups with the weight assisted pin set at 150. So actually he was lifting 0. When he finished his set he looked at me and said "damn that was heavy". It took all that was in me not to burst out laughing. He told me that 300 on that ain't no joke. It was hilarious he thought he was doing 300 instead of 0.