What homophonic jokes are there with different homophones?

My son doesn't like taking a bath. He once asked him, "Mom, it's really troublesome. Why do people take a bath? " Mom: "I'm afraid of getting the quilt dirty when I sleep."

The son then asked, "Why do people wash quilts?" Mom: "I'm afraid of getting dirty when I sleep." The son clapped his hands and said, "Haha, if I don't take a shower or wash the quilt, won't anyone be afraid of getting dirty?"