I heard the following story /parable as a child. I don’t know who is the author. It may be someone you know like most jokes it is more widespread than the author. If you already have heard it ,let me know it.
There was once a crab competition for all countries in the world.All countries sent their crabs to compete. Then someone noticed that the stall from India had a huge box, but it was open. There was no lid for it to keep the crabs in. So people asked the man standing there Why is there no lid for these crabs. They may escape and spread here and there. The man replied , These are Indian crabs. They don’t need a lid. They are too busy pulling each other down.They wont escape.