AskReddit users share the feelings on things that exist solely because of stupid people. When they were discussing cremation, the funeral advisor made my uncle sign a form indicating he understands cremation is irreversible.” – cineboo2. On the cart, there is a giant sign that reads ‘Do NOT drink’ in three languages, all hand written. Let me add the fact that the cart also has a sign on it that says ‘Cleaning Supply Cart. What do you think exists solely due to human stupidity?