Stock market for beginners
Examples of this would be money that is supposed to be used in any other business, money to be paid for college/school fee, trading with borrowed money etc.
Ultimately what happens is that when someone knows in the back of their mind that they are risking the money they can not afford to lose.
If you are in this situation It is highly recommend that you stop trading until you earn enough to put into an account that you truly can afford to lose without causing major financial setbacks.
Good luck and safe trading