Ah, the classic race condition joke that haunts every multi-threaded developer's nightmares!
Thread 1: "knock knock"
Thread 2: "who's there?"
Thread 1: "race condition"
But in reality, it executes as:
"knock knock"
"race condition"
"who's there?"
The punchline arrives before the setup—just like that bug that only appears in production at 3 AM when you're finally getting some sleep. Concurrency: where the answer might show up before you've even asked the question.