The company also offered support to Mr Robinson during his recovery.
However, 11 months after the incident, Mr Robinson's employment was terminated.
Mr Robinson initially pursued a personal grievance through the Employment Relations Authority, alleging that his dismissal was unjustified and that he had been unjustifiably disadvantaged in his employment.
The authority upheld his grievance, and he was awarded $5000 in compensation for humiliation, loss of dignity and injury to feelings.
Mr Robinson then challenged the authority's determination at the Employment Court in 2014, on the grounds that compensation awarded to him should be increased.
In a written judgement released last year, Judge Christina Inglis dismissed Mr Robinson's challenge.
"Having regards to all matters before me, I consider that the award of $5000 was within the permissible range."
Today, Mr Robinson's lawyer Tania Kennedy, appeared at the Wellington Employment Court to apply for a re-hearing.
She told Judge Inglis today the court should hear all evidence afresh - as opposed to the original hearing where evidence from the Employment Relations Authority was considered.
However, lawyer appearing on behalf of Pacific Seals, John Tannahill, said a re-hearing was without merit, and there were no exceptional circumstances for which to call one.
Judge Inglis reserved her decision.