Some people have sent me links to videos or I see them here on Ag talk. I have to learn not to look if I want to get anything done because one video leads to more = not getting anything done. How ever the tractors stuck in the mud I have seen a lot with gps on them.I don't think a person driving would drive into some of these places.  How many people just flat loose track of where they are. There is a story going around that someone had auto steer on a new JD combine and a new JD Draper head and was texting and drove off of a small hill and totaled everything. Not sure if it is true but at some point the gps will stop the tractor or combine if we cut outside the lines.

Here is an example I know nothing about this but it looks like a computer put it in the water. 

https://www.youtube.com/watch?v=Eml4tlmzh8Y