Having kids is a true blessing, but sometimes they can test our patience to unhealthy levels. For example, one thing that young children aren't so good at is understanding the value of money or valuables. So when they accidentally break something expensive or irreplaceable, unfortunately, you can't be too mad at them. Parents of Reddit have revealed the most expensive things their children ruined by mistake and I can only imagine the self-restraint they had to exercise in order to not kill their kids on the spot!