Procrastination
Procrastination operates with unparalleled psychological camouflage, disguising itself as 'necessary research,' 'waiting for inspiration,' or 'just quickly checking one thing.' Victims often remain unaware they've been captured until hours have vanished. Its ability to masquerade as productivity represents an evolutionary masterpiece of deception.
Hippo
Despite weighing roughly the same as a family saloon, hippos demonstrate remarkable aquatic concealment. Only their eyes, ears, and nostrils breach the surface, transforming a two-tonne mammal into an inconspicuous collection of grey lumps. Approximately 500 humans annually discover this stealth capability terminally late.
VERDICT
The hippo's physical stealth defies basic physics - hiding something the size of a garden shed underwater requires genuine talent. Procrastination's psychological invisibility is impressive, but at least it doesn't emerge from murky water to bite canoes in half. Points to the hippo for theatrical commitment.