I know/knew exactly where the edge of my paved drive is. I live on a hillside and gravitational pull effects how heavy objects slide down hill which is what it did. It slide down hill off the paved drive just enough to get it stuck and would have went on down the hill if a small tree hadn't stopped it
I also have done this with FEL front bucket for 12 years with several Kubota BX and B and L tractors. Also have used back hoe on the back of my tractors a few times to pull me out of stuck situations. The BH for my SS was/is in the barn. If it wasn't so heavy I could have carried it thru the 2 feet of snow, removed front bucket, attach BH but alas it is/was to heavy for me to do it and pulled my self out but the bucket curl only lifted the front tires, dug the rear tires in deeper and scraped on the slight bit of concrete it could reach and also drug even more mud back in front of the tires. I did get it out with my pick up and it's now in the barn.