Just one, but it requires someone with a modicum of intelligence to remove the old one and replace it. :)
I did know, but I cant remember
None, they are to poor to afford one.can't tell its to dark
Fill in the blank, then give your answer, along with an explanation. For example: How many Aggies does it take to change a light bulb? Three. One to hold the light bulb and two to turn the ladder....
Well if you'll hold that ladder steady for me, it will just take me a moment.