Belostomatidae

Occasionally when encountered by a larger predator, such as a human, they have been known to "play dead" and emit a fluid from their anus. Due to this they are assumed dead by humans only to later "come alive" with painful results.

╔═════════════╗
║ ┌─────────┐ ║
║ │ P A I N │ ║
║ └─────────┘ ║ <---- this door of PAIN,
║             ║     do not fucking open it
║           O ║
║             ║
║             ║
║             ║
╚═════════════╝

Please, continue on your silly Wikipedia excursions.

>>3
Nigger.