Three part harmony

So, my mom and dad were visiting. We were all sitting in the living room watching TV. I was talking on the phone to my sister. A commercial came on and my mom and I began to laugh at the same time....in the same way.....my sister asked me what was so funny and I said the Aflac commercial. Judy said, "The goat one....I love that one" and she began to laugh.

Becky laughed at us.....and I said.....I wouldn't laugh...you will become us.