They say it is from an old Korean poem. According to Internet :)
"I meant to go to the bakery to buy some floured buns but was grabbed by a Mongol man If words got out about this the cashier would bear witness that it was my fault
I went to the Sanzang temple to light a candle but was grabbed by the head monk If words got out about this the junior monnk would bear witness that it was my fault
I went to the well to draw water but was grabbed by the well dwelling dragon If words got out about this the water bucket would say it was my fault
I went to the wine store to buy a bottle of wine but was grabbed by the store owner If words got out about this the shop keeper would say it was all my fault
I only wanted to find a quiet, forgotten corner to rest but no matter where I go there is not such a place"