This Spring I spent several days over a few weeks cutting ditches on either side of our driveway. We had a couple of really heavy downpours that washed out my newly cut ditches. A couple days after one of the "toad stranglers" in what seemed like the 20th time I reworked my east side ditch, I was using my box blade to smooth things out. I was working down the hill toward the highway. Our property drops pretty slowly down the grade, but at the ditch for the highway, it is an abrubt 5 foot drop. I was trying to get my ditch to blend smoothly into the state's ditch, and had made box blade pulls into the state ditch several times in the past few weeks. Always a little pucker factor going down, but nothing serious. Well this time, the ditch was full of silt from what had washed from my ditches, and it had not dried out nearly as quickly as the stuff at higher ground. Got the tractor in the bottom of the state's ditch and buried it almost to the axles.
I could get it moving, but when I hit the edge of the bank to climb out, the box blade would grab a bite of mud and stall me out. I had all four wheels spinning (MFWD & Diff Lock) and couldn't get out, even with the BB raised as high as it would go.
Got out and waded through the mud and unhooked the box blade. Got out of the ditch and then drove out on the highway and used the FEL and a chain to recover the box blade from the mire.
That episode gave my pressure washer a real workout.