So today on our trail ride we saw:
a road crew working less than 25 feet away, with a cherry picker and one of those enormous drills for breaking up asphalt
a cyclist riding literally 3 feet in front of his nose while we waited to cross the road
a landscaping crew with leaf blowers and giant blue tarps, which we walked past 5 feet away
… none of which were scary in the slightest. So what did he spook at today?
rocks
stumps
a large dead branch that had fallen across the trail
and a pile of rock salt in the road
so, what does YOUR horse spook at?