Blondes on the Roof

There were two blondes sitting on the roof of a house. The ladder they had used to get on the roof fell down onto the ground. Blonde #1: Go get the ladder! Blonde #2: No way! If I jump down, I'll kill myself. Blonde #1: I know! I'll shine my flashlight down to the ground and you can climb down the beam of light. Blonde #2: No way! You'll just turn off the flashlight when I'm halfway down!