Many of us felt ashamed that members of our society deemed it acceptable to hurl racist abuse at him and thought nothing of chucking bananas in his direction while he was in the process of doing a job he was employed for.
At the time many trivialised it. From newspapers reporting in a so-called jokey manner of how greengrocers in Glasgow had sold out of bananas - which were never going to be eaten by those buying them - to Jimmy Greaves on ITV offering a pathetic 'out' for Scottish fans saying that they were 'not used to blacks playing football'.
Commentator, Archie MacPherson seemed somewhat blasé with the treatment Walters received at Parkhead. He would be more vocal after Mark's Tynecastle experience but admitted that had he spoken out weeks early, events in Edinburgh might have been nipped in the bud.
"On reflection, I should have been more vocal about it, as I have always been vocal about the other evil aspects that have attached themselves to this fixture. I, wrongly, saw the banana-throwing as in essence puerile; an insipid form of the Celtic support's capacity for a wind-up, at which they are the best in the business. If more had been made of Walters' treatment at Celtic Park, he might not have had to put up with so much at Tynecastle" - Archie MacPherson
"It was one of the very few days I fell out with fans of the club I grew up loving. It was bad enough having to hear it, and hearing that a fruit shop near the ground sold out of bananas, but it was truly sickening when our job the day after the game was to clear them away. There were dozens of them, scattered everywhere" - Gerry Britton
"Although I was advised to stay out of the matter, I reacted like an angry customer. I approached the club secretary, Les Porteous, and told him that an announcement should be put over the tannoy in my name saying such behaviour had to stop immediately" - Wallace Mercer
The conduct of former Rangers defender who happened to be playing for Hearts that day, Hugh Burns.
As Wallace Mercer would say on that particular matter much later.
"There was speculation after the match with Rangers that Hugh Burns was cautioned for an alleged remark made to Mark Walters. Whatever the merits of that speculation, Burns was severely warned by me, and the point made in no uncertain terms that this club will not stand for any form of intolerance" - Wallace Mercer
Mark himself may have expelled it from his mind as not to give Burns the 'satisfaction' (sic) of having got to him.
You would have thought someone from the media would have got on the phone to Burns to see if 29 years later he had any regret over his alleged conduct - after all, one outlet at least seems to have him on 'speed dial'.
But something else was missing from this press conference that championed the worthy cause of waging war against racism.
It is no secret that a section of the Rangers support sing a song ("The Billy Boys") which celebrates the life and unsavoury work of Glasgow gangster Billy Fullerton who was also a member of the British Union of Fascists as well as being granted permission by the Ku Klux Klan to set up a Glaswegian chapter of that vile organisation.
The song in question contains the line: "We're up to our knees in Fenian blood". Fullerton and his henchmen would attack Catholics in the Bridgeton area of the city during the 1920s and 30s with razor blades.
Given the Show Racism The Red Card event was being held at Rangers' own Ibrox stadium, this was an opportunity for the club to show their 100 per cent dedication to eradicating all forms of bigotry and make a stand against the moronic element who indulge in anti-Irish racism.
Not a peep from the club. Not one from Walters but given the footage on this clip from 49 minutes and 16 seconds onwards shows him - along with other Rangers players eulogising the racist Billy Fullerton in song, it is something that he would, not surprisingly, probably be embarrassed to bring up.
Even though Mark should have expressed regret at singing such a song - no matter how intense the peer pressure may have been from his team-mates.
But equally astonishing is that going by the quotes from Walters published by a variety of media outlets, did no one from the journalistic fence pose the question about both Rangers and the Show Racism The Red Card organisers about the work needed to be done to eradicate anti-Irish racism?
For the record, had this event been held at Celtic and not one question had been asked about the club's attitude towards anti-Slavic racism given that they employ a striker, Leigh Griffiths, with a criminal record for such an offence, I would be seeking answers as to why one wasn't asked.
It appears that one wasn't asked here. Were the assembled media told not to do so by Rangers (and if so why obey such a silly request if one were made)? Or was the will not there given that some outlets appear to be propped up by the blue pound in these days of falling newspaper circulation?
Whatever the real reasons, both Rangers and the media failed to reinforce the message that all forms of racism and bigotry are not welcome in Scottish football and society in general.
A missed opportunity indeed.