This is actually quite humorous. I laughed. Any guy with a child knows how this can be.
Check out this timeline:
At 8:49, 8:51, and 8:53, she noted that he screamed — twice at 8:51. He laughed at 8:52 and then, at 8:54, he 'screams and startles me'.
There were 'weird commercials' at 8:56 — a time when dad clearly took a break from his over-the-top reactions, too.