In "Heard it Through the Grapevine" Yoo Joon Sang and Yoo Ho Jung saw Lee Joon shaking the food dish. They were shocked and were wary of their son's very low classed behavior.
On the 11th episode of the Monday/Tuesday drama "Heard it Through the Grapevine" (script Jung Sung Joo, director Ahn Pan Suk) broadcast on Mar. 30th, Han Jung Ho (played by Yoo Joon Sang)'s family got together as it became breakfast time.
At this time, Han Yin Sang (played by Lee Joon) started to shake the food dishes before he started to eat. Seeing this, Han Jung Ho and Choi Yeon Hee (played by Yoo Ho Jung) were incredibly surprised. They said, "So you now just ignore table manners too?"
At this, Han Yin Sang said with a very innocent voice, "If you do this, it's easier to do dishes and such." Nonetheless, he started to get criticized by the two people.
After the dinner, Choi Yeon Hee said to Han Jung Ho, "I'm going to talk to Jin Young's mom" and Han Jugn Ho said, "You need values. This person has been forgetting who this person is and how they have to live." With that, Choi Yeon Hee talked about Suh Bom (played by Ko Ah Sung)'s family saying, "You can't allow them to go to that house." Han Jung Ho said.