An elephant an a mouse were walking in the forest. The elephant fell into a ditch and shouted: "Hey get a BMW and pull me up!" The mouse did that. After a while the same thing was repeated some times, until the mouse fell into a ditch and he shouted:"Hey get a BMW and pull me up!" The elephant:"NO, I just put my trunk into there, and you can climb up along it!" Teaching:"If you have an enough long trunk - you need no BMW!"