A Nashville McDonald’s customer has been charged with assault for knocking a hot cup of coffee onto an employee and burning her arm, WTVF reported.

Charles Prince, 54, complained that his coffee was too watery and not strong enough Thursday morning, WKRN reported, and became angry when the cashier explained that all the coffee was made fresh every day in the same way.

Prince allegedly hit another cup of coffee, knocking it into another employee. Police said she had visible burn marks on her arm.

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Prince was arrested and released on $1,500 bond.

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[Main image: Metro Nashville Police Department]