Peter's denial of Jesus did not happen over a period of seconds or minutes, but over a period of hours. An hour passed from the time the first person said, "You were one of those with Jesus the Galilean," to the time Peter denied his Lord for the second time. He had ample opportunity to hightail it out of there, but for some reason he hung around.
His story reminds me that no person is safe from temptation except the one who flees from it. Peter, having been warned by Jesus Himself, should have avoided any place where he could fall. He definitely should have steered clear of all roosters! The Lord had said that before the rooster crowed, he would deny Jesus three times (see Matthew 26:69-75). I would have asked, "Are there any roosters here? Because if there are, I'm leaving!"
But seriously, if someone like Simon Peter could fall, then surely we can, too. First Corinthians 15:33 tells us, "Bad company corrupts good character." Peter hung around people who were dragging him down spiritually. Are you in a similar situation? Have you entered into relationships where people are dragging you down? Maybe it's a romance. Maybe it's a close friendship. Are you finding yourself compromising your principles to fit in, or so that you don't offend anyone? Perhaps you need to reconsider your friendships. Perhaps you need to make some immediate changes. And even if you have made some mistakes, there is still time to commit yourself to the Lord. That time is now. Don't wait for the rooster to crow.