Related Clues:

• Disturbances? Nothing for prison to get upset about
• Humorous people
• As ways of showing pleasure, they're funny
• One being imprisoned deteriorates -- result is protests
• Entertainers for kings
• Basic human intelligence
• Habitual joke-crackers
• Heading west it's common sense
• Practical jokers
• Comedians' intelligence
• Good things to have about you in an emergency
• Dog-tail movements
• Goes back and forth, as a tail
• Hilarious people
• Real knee-slappers