Sunflower,

The mercury in the daylight bulbs is not leaking out of them. there is a very small of mercury in them needed to create the pressure to light the bulb but it only escapes if you break one. I know there is some argument about mercury in the bulbs but considering the fact that they consume so much less electricity than tungsten bulbs (tungsten is also poisonous btw) they are actually helping the environment in that respect since your local power plant won't be pumping as much mercury or whatever else into the air for you to light your home.

My house is full of them, I love them. Great for doing artwork in the wee hours. I have been sitting next to one for over 15 months without any ill effects.