Our barn has a sump pump, and the discharge comes out through a black corrugated pipe that runs out of the back of the barn onto a grassy area. Drifter and I have been hand grazing in the general area, but he's never gotten too close to the black "snake". Today, he was edging closer - lots of snorting - Drifter is a big snorter when he's exploring/worried about something.
Then the pump ran and water ran out of the pipe - big spook - but one thing I noted that was important - he never ran to the end of the lead and didn't pull on me at all, and settled down right afterwards. He grazed up to a couple of feet of the pipe. I walked over the pipe and gently asked him to follow - and he did! He did clunk his back feet - I see walking over poles in our future. We did it a couple more times in between grazing periods. I was very pleased that he trusted me enough to walk over the scary "snake" when asked.