Seo Kang Jun shares how sensitive he was as a child

And that's probably why he's such a good actor today.

A tale of what caused Seo Kang Jun to cry as a child was brought up on the June 8 airing of MBC's 'Radio Star' that showed how delicate he was as a child.

SEE ALSO: Lee Hyori and Lee Sang Soon mourn the loss of beloved dog Guana after 15 years together

When asked, "Did you cry at seeing a grandmother selling herbs at the market?" he replied, "I think I was very tenderhearted as a child. Why, you know those grandmothers who sell things at the market and even at the overpasses? There were many times when I saw that and got sad, so I'd say to my mom, 'Let's go buy that.' However, our house didn't have that much money, either, so my mother often said, 'Why would I buy that?'"

You're doing pretty well now, Seo Kang Jun! Go and buy all the goodies from all the grandmas in South Korea! Or just, you know, flash 'em a smile and that'll probably make their day, too.