And then he answered his own question.

"But of course, she wouldn't, cos she likes cats, and dogs chases cats.

Oh, dear, I thought for a minute maybe Snap could come here." Billy lay down and closed his eyes resolutely.
Suddenly they flew open.

"Does it hurt to be dead ?" he demanded.
"Nothing hurts you after you are dead, Billy," said Wesley.
"Yes, but I mean does it hurt getting to be dead ?" "Sometimes it does.

It did not hurt your father, Billy.