This mug isn’t just for coffee — it’s a public service announcement.

The “I'll Hurt You” Mood Meter Mug is a color-morphing masterpiece that tracks your emotional stability by caffeine level. Watch the mug reveal a hilarious vertical warning system as it warms up:

• Top: I’LL HURT YOU
• Middle: DON’T SPEAK
• Bottom: YOU MAY SPEAK

Whether you're protecting coworkers, roommates, or innocent bystanders, this heat-activated ceramic mug makes your caffeine boundaries crystal clear.

• 11 oz ceramic mug with heat-reactive coating
• Design appears when hot liquid is added
• Hand-wash only to preserve the color-changing magic
• Perfect gift for the chronically under-caffeinated and slightly unhinged

Speak only when the bottom is visible. We warned you.