The context of the following conversation is Lee was about to dive off a pier when Sydney saw it was shallow. Sydney pulled him back and saved Lee's skin.:
Sydney says Lee was not paying attention and where he was going to jump off the pier was shallow..
The friend responds He never looks to see what is around him before he does it..
Sydney responds I had one second to pull him back, before he jumped..
The friend responds Good thing he had you there to save him from hitting he head in the shallow water..