Why is it important to be careful about the use of electricity in the bathroom?

Why does Ronald fill the bath with bubbles?

Ronald said Edyth that you get in quickly before it loses its strength. I skin a bit of colour. And Bubbles cover the heater. It was main aim.

3. 
   What does he expect to happen when he turns on the electricity again?
   

He expects that the electricity hit her and her death.

4. 
   Why does it not happen?
   

“One, two …three,” he said, and pulled the handle down. A small explosion from the electric point behind him told him that the electricity had gone off. Then everything was silent.

5. 
   What makes Edyth go to the police?
   

Ronald asks her to make will in their wedding. Then he starts change to the bathroom. So she suspects is actions.

6. 
   What do the police ask Edyth to do?
   

The police asked him why he had got worried so soon. And you must be given the opportunity to try the crime again.

7.