i do my own stunts - You do your own stuff because others are too slow, too dumb,

You do your own stuff because others are too slow, too dumb, or too cheap to do it right.

I did my own stunts because the guy who was supposed to help me took ten minutes to do a simple push.

I did my own stunts because the other guy tried to do a roll and landed on his face.

I did my own stunts because the person who was helping me was too cheap to buy proper stunt gear.