you know you've become a nerd when
1. You love doing lab work
2. You could've gone home an hour ago, but stayed because you wanted to continue your experiment
3. You're even considering skipping your favorite dance lessons to continue your experiment
4. You've also conveniently skipped breakfast, lunch and dinner to run your experiment
5. You feel like the king of the world when your experiment gives you the slightest correctness in results.