The 36-year-old victim, Stephen Jenkinson, had to have his right thumb surgically repaired.

The pair argued over an order code after Rocha delivered a £57 order to the wrong address in Aldershot, Hampshire. An argument broke out when Jenkinson went to collect the delivery from the wrong address and Rocha bit his thumb when Jenkinson raised his hand.

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Rocha was charged with grievous bodily harm with intent at Winchester Crown Court but was found to have "unintentionally caused grievous bodily harm".

Prosecutor Rebecca Austin said that Jenkinson was permanently disabled by the attack and had to undergo an 11-hour operation, adding that the impact and consequence of the attack on the victim was devastating. 

Jenkinson said he had to relearn basic skills such as buttoning buttons and tying shoelaces, he was also a plumber and could no longer work. 

Jenkinson continued: "I'm financially ruined, I'm unemployed. I have a huge amount of debt and I can't see the light at the end of the tunnel. My relationship with the mother of my newborn daughter has also broken down."

Judge Timothy Mousley KC told Rocha that the offense was "a serious offense that will result in his being sent to prison."