Apparently, it was over leaves and grass trimmings. http://www.newsweek.com/sen-rand-pauls-ribs-were-broken-fight-over-leaves-yard-waste-report-703564
The Bizarre True Story of the Neighborhood Scuffle That Left Rand Paul with Six Broken Ribs https://www.gq.com/story/inside-rand-pauls-neighborhood-fight ... Jim Skaggs, who lives nearby (and is also one of the developers of the Rivergreen community), said that he thinks that Boucher charged at Paul from the street. From that direction, Paul's yard slopes steeply downward, toward the lake at the rear of his property. Barreling downward about 30 degrees, this imagined path would increase the force of a running tackle, perhaps explaining how a man of Boucher's diminutive stature—an acquaintance of the two men estimates that they both stand five-foot-six and weigh about 140 pounds—could do so much damage. ... But even if you grant Boucher the momentum of a downhill charge, the injuries Paul suffered are extreme, according to Pritts (who hasn't treated Paul). An unarmed assault rarely results in more than a broken rib or two. The injuries Paul suffered sound to him more consistent with a car accident, or a fall down a flight of stairs—or even from the top of a building. "I've seen a few from people getting kicked by horses," added Pritts, who speculated that Paul's injuries may indicate he was stomped on while lying on the ground. ... According to the Daily Mail, Boucher may have been angered by Paul's decision to plant trees that now block the view of the lake once enjoyed from Boucher's house, lowering the property value. If Boucher had been a luckier man, he might be living now in happy obscurity in Florida, where his son practices law, which, according to Skaggs, had been his intention. Instead, he's stayed put and poured a good deal of attention into his yard. A Bowling Green resident who said she's known Boucher and his ex-wife for close to a decade but asked that her name be withheld said Boucher has "some OCD issues." Others corroborate this description. WATCH Galsplaining with Gal Gadot "He's kind of a neatnik in his yard," said Skaggs, the co-developer who built Rivergreen 20 years ago. "You'd see all the little clippings sitting in little plastic bags waiting for pickup every week." Indeed, on a recent afternoon, a black garbage bag filled with yard clippings still sat in Boucher's driveway in front of his three-car garage. Planters flanking the front steps and the back of the house were all neatly stacked with the same seasonal ornament: a greenish-black-and-white gourd on top of a solid white gourd on top of an orange pumpkin. Like most everyone else in the Rivergreen development, Goodwin told me, Boucher pays in the ballpark of $150 a month for professional landscaping, while Paul insists on maintaining his yard himself. Goodwin said that part of what nagged at Boucher was the difference in grass length between his lawn and that of his libertarian neighbor's. "He had his yard sitting at a beautiful two-and-a-half, three inches thick, where Rand cuts it to the nub," Goodwin said. Also at issue, according to Goodwin, is Paul's tendency to mow outward at the edge of his property, spraying his clippings into Boucher's yard. Boucher, he said, has asked Paul to instead mow inward when near the boundary line, and even sought help from the Rivergreen Homeowners Association but has gotten no relief. Goodwin recalled picking up Boucher, a devout Catholic, at his home after church one Sunday afternoon several years ago. Boucher had confronted Paul about his yard-maintenance practices a few minutes before Goodwin's arrival, to no avail, and Goodwin saw Boucher grow agitated as they both watched Paul blow grass onto his lawn. "I've asked him and I've asked him and I've asked him," Goodwin recalls Boucher fuming. "How long can you sit there taking someone plucking a hair out of your nose?" Goodwin asked. "How long could you take that before losing your temper?"
If there's one thing that will unhinge a liberal, it's planting trees that will block a view of the lake.
Heck with all this... ...the REAL question is: is this guy who gave Rand what-fer an unhinged Liberal or ain't he?
Yes, he's an unhinged liberal, but the reason he was unhinged in this instance seemingly had nothing to do with politics.