I think its the audience laughed
A dad is someone who will go out of his way for you. Someone who is proud of you no matter what mistakes you make. A dad is so much more than a few sentences, it can't even be described.
Answer:
Greg opened the door and found his father pacing the kitchen with a worried look in his eye. When he saw Greg, his face broke out into a smile. “Where on earth have . . . ,” he started to say. But then he stopped and pulled Greg toward him in a big bear hug. “Forget it, it doesn’t matter anymore. I’m just glad you’re home,” he said.
Greg looked up at the man he had never understood before. “Thanks, Dad,” he said.
“For what?” his father asked.
Greg smiled, and answered, “Everything.”