Undertaker is one of the most respected wrestler in WWE, everyone goes to Undertaker for advices. Undertaker is very honest in giving out his opinion.
Big Show recently was recently interviewed by Generation Iron Fitness & Bodybuilding Network, where he recalls Undertaker advice to him in 1999
“I went to him one time in ’99 and I did the same thing that every young guy does, ‘Did you see anything maybe I can change or work on? Is there anything I can improve on?’ I just wanted him to pat me on the back and say, ‘No, kid, you’re doing great,’ because that’s what your mentality is. ‘Taker looked at me, he goes, ‘Yeah, I got some advice. I think you should take two weeks off and quit the business,’ and he walked off.”(H/T: Sportskeeda)