I just can't stand the idea of instilling fear in your child, obsessing about germs, and using monsters to get your kids to behave, etc.
A few recent examples: I hung out with a friend last week who told her daughter not to go on the big slide because "it's scawwy!!" (really? you further insult her ability to decide for herself by using a baby voice?) and told her she had to hold her hand near the street because "there's monsters!" Recently I laid the kid on his play mat on the back patio, and my mom twitched and fretted, finally scooping him up because she was worried about dirt.
I just think there is a difference between keep your kids safe, and being a paranoid mess. Also, I believe in telling your kids the truth (like, hold my hand because I don't want you to run out into the street and get hit by a car, not "there's monsters!)
Rebecca Woolf has written several entries about fear in her blog, Girl's Gone Child: