The Crab Paradox.
If you were to place 100 crabs in a bucket, eventually any one crab could climb over the others and make its escape. Here is where it gets tricky. When a crab tries to climb out, it is inevitable that the other crabs will grab at it and bring it back down with them.
What is the lesson that we learn from this? The lesson is that when someone is succeeding or is able to escape from a life that is not for them anymore, most people will try and bring them down back to that level. Don't be that person, be happy for people that make it out of the struggle. Or else you will just be another crab just like everyone else.