To Dr. Banta 's clinic came a lady with her seven year old son. She said, "Doctor, my son has this embarassing habit of sucking his thumb."

Dr. Banta gave him a thorough check-up and then pronounced "Madam, get him new half pants which are loose for him."

The lady was astonished and asked how that would help?

Dr. Banta hastened to explain, "With loose half pants, he will always be busy using his hands to prevent them from slipping down. His thumb sucking will stop!"