The evolution of a programmer's Saturday night after a few beers is painfully accurate. Start the evening feeling ambitious, cracking open that book on complex concurrency algorithms thinking "tonight's the night I finally master this!" Two beers later, reality sets in. "Maybe I'll just read about the simple concurrency stuff instead." By beer four, all pretense of sophistication is gone. Just point to the mutex and grunt "lock thing make code no breaky." And that's how senior developers are born. Not through education, but through the gradual acceptance that sometimes the simplest solution is just to prevent everyone from touching your stuff at the same time.