Stephen Hawking's Shampoo

This is a pun. Head 'n Shoulders is a popular brand of shampoo. The joke plays on the similar sound of "head 'n shoulders" and "head and bolts", implying Stephen Hawking might be interested in bolts due to his scientific background.

• Shampoo
• Head
• Stephen Hawking
• Hair
• Shoulder
• Science

• What is Stephen Hawking's favorite song? Head, shoulders, screws, and bolts.
• How did they know the teacher onboard the spaceship had dandruff? Cause her Head and Shoulders were everywhere!
• Why is he called Stephen Hawking? Because he is always trying to hawk up phlegm to clear his throat.
• How does Stephen Hawking get clean? He uses Tesco car wash.