Tried to fit a new battery onto vehicle, blew the Engine computer box

<p>Went to Midas, they quoted for a battery, asked if they would fit it. They agreed, Then the swapped the polarities in the battery leading to the engine computer box blowing. I had to have the vehicle towed to the dealership and after analysis, the computer box needed replacement.Midas takes no responsibility of it's employee's actions.</p>