Do you believe in "accidents"?

Isn’t that really just a conscious or subconscious decision not to pay enough attention or be responsible for your actions? Do you believe people are victims of circumstance or do they make a series of poor decisions that result in what is later called an accident, when refering specifically to their actions? I believe an accident can happen to you…but I sometimes question whether someone at fault has the right to claim that their actions resulted in an accident.