i was mowing a very steep bank that was on a hillside. i got to the top and was backing down slowly and the front end barely came up. i barely pulled back more on the sticks and the front wheels went into a small hole and when the front tires came out it was to late. the front of the mower was straight up in the air before i realisid that it wasnt going to set back down. the roll bars were in the bottom notch so they were down all the way. the end of the rollbars was pressed against the ground and the mower finally quit moving. the floor piece that covers the pulleys came off and flew over my head. i rolled out of the seat backwards and fell on the ground. if it wasnt for the bars i would have been crushed. i tried to get the sticks back to neutral out to the sides so i could jump off but the motion of the mower made it impossible. i was so fortunate to still be alive. ive seen z-turns without rollbars even installed and if i was on one of those i wouldnt be alive. ive mowed that bank 20 or more times in the same tracks but this time made it the last ill ever do it. from now on if its something that steep or NEAR that steep ill use the walk-behind instead of being stupid. i used to have a state of mind that no matter what happens i will be able to do something and ill be ok. but for the fourth time in my life i was reminded that there is not always something that you can do. oh yeah... the mower i was on was a 60in ultracut exmark 31hp.