yeah I can't do a weight bench even with just bodyweight. I used one of those aerobic steps with four boosters on each side and there was no way I couldn't let the non-working leg come all the down to the floor. I was focusing very hard to make sure all the effort and momentum came from the working leg and I about lost it on the 10th rep on the second set! Good thing the step thing was against a retaining wall cuz my knee said 'i quit!'
Oh and lunges suck big time too, I was only able to 8 reps (bodyweight only) with my bum right leg on the second set today. *shakes fist at legs*