This was the first cut on property so inexperience played a role. I trimmed around the ditch thinking that I would only be mowing the flat areas. Well, I hit part of the slope going into the ditch and with the wet grass I slid right into it. If it wouldn't have been for a spit second reaction to try and straighten out the ZTR as I started to slide; I could have been laying in the ditch with the mower on top of me. Yes, I assessed the situation prior and thought I was going about it safely No, noone was around to get a laugh out of it. Lessons learned Bright side of things, I just got a come-along so getting it out the the ditch wasn't any problem.