What incites such anger? Kansas City cops arrest woman suspected of hitting Dan the police horse during Donald Trump protest BY Nicole Hensley NEW YORK DAILY NEWS Saturday, March 19, 2016, 10:05 PM Christopher Smith/TNS April Foster is pictured screaming at a police horse during a March 12 anti-Trump protest in Kansas City, Missouri. Kansas City cops are not horsing around. A woman suspected of striking “Dan” the police horse during last week’s Donald Trump protest in Missouri was arrested Friday night. In an attempt to spook a member of the city’s mounted patrol, April Foster, 29, allegedly yelled at the horse as its officer pushed through a crowd of protesters. She then slapped it with an open hand, according to the Kansas City Star. Foster was pictured facing off with the police horse before vanishing into a crowd teeming with what authorities described as 500 demonstrators swarming downtown streets after the Republican presidential front-runner’s rally. She was arrested on abuse of a police service animal charge at 5 p.m. Friday, 10 miles south of Kansas City along the Missouri-Kansas border with the help of an anonymous tipster. Dan’s officer also recognized Foster through a photograph, but investigators did not specify which photograph. Christopher Smith/TNS Police pepper spray a crowd of protesters and journalists outside the Arvest Bank Theater in Kansas City. Kansas City Police Enlarge Friends of the KC Mounted Patrol/via Facebook Enlarge April Foster, 29, pictured in a booking photo, is accused of hitting Dan the Kansas City police horse, pictured during last year's World Series parade, at a Donald Trump protest. She posted a $500 bail and is no longer in custody. Kansas City Police Chief Darryl Forte anticipated an unruly crowd after watching chaos erupt 400 miles to the northeast. Throngs of protesters managed to scrub a Trump rally scheduled in Chicago the day prior. Forte delayed a vacation by two days to keep an eye on the March 12 campaign event, he said in a blog post reflecting on the night’s protest. Christopher Smith/ZUMA Press/Corbis Foster then reached out to touch the horse during the March 12 rally. “The officers called in our Mounted Patrol for back up to break the two groups apart and get them out of the street,” Forte wrote. “In the course of that, a police horse was assaulted.” Four people were also arrested on disorderly conduct charges after authorities unleashed streams of pepper spray at the crowd stepping off the sidewalks.