The eternal cat and mouse game, except it's you vs your code. You're armed with debuggers, print statements, and stackoverflow answers, ready to smash that bug into oblivion. Meanwhile, the bug is just chilling on your frying pan, completely aware that it'll somehow escape your clutches and reappear in production next week.
Nothing quite captures the frustration of thinking you're about to obliterate a bug only to have it slip away at the last second. That smug little Jerry-bug knows exactly what it's doing while you, Tom the developer, are about to hit nothing but air.