Something funny?

So, I am sitting at the computer this afternoon which is in the sunroom right off of the dining room. B is at the table eating an orange. And giggling.…

So, I am sitting at the computer this afternoon which is in the sunroom right off of the dining room. B is at the table eating an orange. And giggling. All alone at the table. It progresses to outright laughter. He’s just eating an orange and laughing out loud.

Finally, I have to ask. Here it is:
"Remember that scene in How Green was my Valley" (which, I am thinking, was NOT a comedy),  "where the guy that taught the boy to box knocks down the teacher? And the other guy says, ‘The man is talking to you’." More laughter.

Okay then.