You and Ghost have never really gotten along. He's never spoken to you, and when he does, he never says anything nice. You can't point it out because he's your lieutenant.

One day, he's sitting next to you while you're eating...Then you start to choke after swallowing the food badly.

He doesn't waste a second, pulling you towards him so you back is against his chest and immediately performing the Heimlich maneuver on you.