One day a bull was grazing in the field  and a pheasant was picking out the ticks off the bull’s body. They are used to each other; they are sort of friends, so it’s going on.  Then the pheasant became nostalgic and said, “when I was young, I could fly and sit on the topmost branch of the big tree out there, but now I can’t even get to the first branch”.  The bull said nonchalantly, “Oh! what’s the problem? Just eat my dung, and it will give you all the nourishment that you need to go to the topmost branch”.  The pheasant said, “Really? You mean just eating your droppings will get me to the top of the tree?” “Yes, try and see!” he replied.  So the pheasant hesitantly ate some of the dung, and that very day he flew up to the first branch! Every day, he started eating more and more of the dung. In about a fortnight’s time, it reached the topmost branch, and went and sat there. The pheasant was so thrilled, having eaten this dung and being able to sit on the topmost branch. Now when the farmer, who was sitting on his balcony, saw this fat pheasant sitting on the topmost branch of the tree, he just pulled out his shotgun and shot the pheasant off the tree!

The moral of the story is: bullshit may get you to the top but it will never let you stay there…!
Source: Mystic Musings – Sadhguru!