Examples:

• He was as nervous as a cat on a hot tin roof before his big presentation.
• Whenever she's around her ex-boyfriend, she acts like a cat on a hot tin roof.
• The children were like cats on a hot tin roof, unable to sit still during the long car ride.
• The athlete felt like a cat on a hot tin roof before the championship match.
• The politician's evasive answers made it clear that he was a cat on a hot tin roof.
• The dog's loud barking sent the neighborhood cats running around like cats on a hot tin roof.
• The anticipation of the exam results had the students feeling like cats on a hot tin roof.
• The crowded subway during rush hour made commuters feel like cats on a hot tin roof.
• The actor's stage fright had him pacing backstage like a cat on a hot tin roof.
• The constant phone calls and emails had the office receptionist feeling like a cat on a hot tin roof.