Not quite clear on the concept

A neighbor came across the street to visit with my husband, who was working outside. A while later, his young son decided to join them.

'Uhm, did you look both ways before crossing the street?' my husband asked the boy when he got across.

The boy's eyes got big. 'No! I forgot!' he exclaimed, whereupon he ran across the street without looking, set up on the other side, carefully looked both ways, and came back, proud of himself for getting it right this time.

"I can see we need to work on this," his father said, once he recovered enough to talk.