Sometimes even I don't understand certain Russian stuff. Russian folklore gave birth to quite many strange things. The other day a friend sent me an old joke that I just had to share with you. Let's see if it makes you smile :).
По реке плывёт кирпич, деревянный как стекло, ну и пусть себе плывёт, нам не нужен пенопласт.
A brick is floating down the river, as wooden as glass. Let it float, we don't need that styrofoam.
Yep, you read it right. I don't have anything else to say.