I once saw a comercial for a laundry detergent that was supposed to be good at these things; grass, blood, etc. I can't remember the name right now. Anybody else know?
seriously, it might have been Oxyclean
The one I'm thinking of was more of an actual laundry detergent. It shows a kid sliding on some grass/dirt and they skinned their knee in the process. The stuff took out all the stains. I'll think of it eventually. Us older people somrtimes think a little slow. :-)
Horsepower is how hard you hit the wall, torque is how much of the wall you take with you.