2 people decide to go to withdraw money from their bank account, only to find themselves in debt of $300. They try to forget this and go out for lunch. They get a bill of $20 and can't pay it. Both people get a job and pay all their debt, with $1000 still left. They are happy.
Let's go to the bank to withdraw $20 for lunch!
We're in debt of $300!!!
What happened to all our money?
I can forget about our debt by getting even more debt!