http://www.jeffstepp.com/mike/kiddies/ for some pictures (and even a few videos) of kids at the hagwon (academy).
There's a middle school student named tom. The following is a cell phone message conversation I had with him:
Me (unprovoked): stop playing computer games
Tom: thank you but i already played computer game ccc (in korean ㅋㅋㅋ (kkk) means laughing)
Tom (5 minutes later): for 10 hours.
Me: you're ridiculous
Tom: (In korean)!I'm not silly, you're crazy! Mike, you're so stupid (korean letters, english sounds)
Me: I'm giving the class extra homework and telling them it's your fault
Tom:what's my fault?
me: (simplified repetition)
Tom: (in korean)I don't understand
me: (explanation about how it was punishment for him calling me stupid)
Tom: (in korean): but you called me silly before i called you stupid!
me: that's because you played video games for 10 hours. you are silly.
tom: yeah, but it was wonderful cc
me: ok, you win. do your homework and don't come late tomorrow.
tom: cc i win you lose (now in korean) tomorrow i'll come late cc