Claudio Ranieri's surprise Premier League leaders were eventually held to a 2-2 draw after three late goals, and among the drama home fans took exception to the referee's decision to award West Ham a late penalty.
David Sullivan said it was the worst abuse he has received in years and described it as a 'throwback to the bad old days'.
'I still want Leicester to win the title'
Fans of all clubs, including Leicester took to Twitter to sympathise with Gold, who had the final say on the matter with a series of posts on the social networking site.
"I want Leicester to win the Premier League and I am pleased for their fans," Gold said on Twitter.
"But their behaviour towards us was unacceptable."
I want Leicester to win the PL and I am pleased for their fans but their behaviour towards us was unacceptable. dg https://t.co/zWvTMQjbIt— David Gold (@davidgold) April 19, 2016
He later responded to a Foxes fan's apology saying: "No problem I still hope you win the league. (Was) treated nice(ly) in the boardroom."
No problem I still hope you win the league. Treated nice in the board room. dg https://t.co/CfTJ6HtCur— David Gold (@davidgold) April 19, 2016
Painful reminder for Sullivan
Gold's business partner Sullivan was of course subjected to an intimidating confrontation with a small section of his own club's fans last year.
Under then manager Sam Allardyce, West Ham had yet again slipped out of the FA Cup without a fight, 4-0 away to West Bromwich Albion.
Many of the travelling fans left early as did Sullivan, who was accosted by a small group of supporters hurling abuse at him for departing before the end of the match and calling for Big Sam's head.
Sullivan in fact was going to see his sick mother in hospital and a video emerged online of the incident, as reported by the Daily Mail at the time.