Austin police arrested a woman early Saturday downtown after she slapped a patrol horse on its backside, according to court documents.

Officers chased Allison Chaffin, 20, and detained her after she "slapped the horse with an open hand to the left rear hind quarter," according to an arrest warrant affidavit.

The horse — named Titan — "reacted in a startled manner and spun around, thus inhibiting (the officer's) ability to control Titan," according to the affidavit. "Chaffin's action of striking the horse caused (him) to momentarily lose control of the horse when it was spooked and began to turn/move away in an area that is crowded with other officers and civilians."

“When asked what happened, Chaffin immediately stated that ‘it was a joke’ and ‘it was a bet’ to slap the horse,” according to the affidavit.

Chaffin faces a Class A misdemeanor charge of interference with a police service animal, an offense punishable by a fine of up to $4,000 and jail time of up to a year.

Texas law prohibits interference with police service animals and requires tougher penalties if the offender's action "inhibits or restricts the handler's or rider's control of the animal."

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Travelers walk around the baggage claim in the South Terminal at Hartsfield-Jackson Atlanta International Airport on Thursday, Nov. 6, 2025. Atlanta is among the airports where the FAA will reduce flights due to the shutdown, and airports are facing a shortage of air traffic controllers. 
(Miguel Martinez/ AJC)

Credit: Miguel Martinez-Jimenez