Come on, we all do it... We avoid the dentist like the plague!

What is it really that makes us put off our dental work till it's absolutely necessary to go? Fear of pain? Expense? A bad experience? We all dread it, and a good percentage of people put it off for 10 or 20 years, until gum disease and decay set in and by then it's often too late. What are your reasons for avoiding the dentist?