One event that certainly would have altered Ramos' course was a move to United, who tried to bring the player to Old Trafford in 2015.
"I have learned things from all the coaches, even in the academy at Sevilla, and with Jose I learned good things and I am grateful".
Spanish channel, Chiringuito TV, spotted Ramos giggling and posted a clip of the moment on Twitter along with the caption: "Do not miss the laugh of Ramos during the protests of Mourinho".
Mourinho, who spent three seasons in charge at Madrid, recently claimed he had needed to "beg" to leave the Bernabeu in 2013 and return to Chelsea because "everybody" had wanted him to stay.
Real have since gone on to clinch three Champions League titles, two of them under Zinedine Zidane, and Ramos believes the current manager - a former player - is a ideal fit ahead of Tuesday's Super Cup final in Skopje.
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"My view is that when a team has a new coach it changes a great deal", Ramos said.
"How to manage the dressing room..." I think Zidane understands the changing room very well, although Mourinho had experience that Zidane did not have before [taking the job]. A team, depending on the coach you have, changes completely. I believe both are great coaches.
"Each one is different, neither better nor worse".
Ramos' claims hint at a slight unease among his fellow teammates during Mourinho's time at the club, suggesting that his dressing room approach was inferior to that of current boss Zidane.
"There was an opportunity [to join United] in the past but eventually my situation was resolved in a different manner", he added. I'm grateful to United for the interest. "We lost 2-1 which, I think, shows the result was really short, and one of the goals was offside so with a good VAR [video assistant referee] it would be 1-1 and extra time".