i told some jokes to my co-workers today, i've never seen them laugh so hard.  seems like a better way to ingratiate myself than giving everyone junkfood

examples:
what did the bread say when it ran into the wall? 빵

what did one cookie say to another when it wanted to leave? 과자

http://davidmkim.blogspot.com/2007/02/korean-konglish-jokes.html
http://www.soompi.com/forums/topic/97621-korean-jokes/page__st__100

they're also just pretty funny to read on their own