A man, who had just been sacked from his job at a North Somercotes company, hit his former supervisor because he thought he was laughing at him.
Lee Croucher, 27, of Granville Street, Grimsby, admitted assaulting Gary Williams on January 24 at North Somercotes, when he appeared before magistrates at Skegness.
Paul Wood, prosecuting, said Croucher worked for Miracle Span Steel Buildings at North Somercotes and Mr Williams was his supervisor on a contract in London.
He said Mr Williams was forced to report Croucher because of the standard of his work on the site and, as a result, Croucher was invited to a meeting with managers at North Somercotes on January 24 when he lost his job.
Mr Wood said Mr Williams was at the site but took no part in the meeting, nor in the decision to sack Croucher.
After he was sacked, Croucher went to look for his work boots and saw Mr Williams who commiserated with him, but Croucher thought he was laughing at him and swung his fists at him several times, hitting him once on the left eyebrow. He later sent an abusive text to him.
In defence, it was said there had been earlier disagreements between Croucher and Mr Williams.
Magistrates fined Croucher £100 and ordered him to pay £50 compensation to Mr Williams, who was not injured in the assault, £85 in court costs and a £20 victim surcharge.