Sally went to her first day of kindergarten, and was wearing a pretty pink dress. At recess, this one boy was staring at her while she was on the monkey bars. He told her to do it again, as he watched from directly below.

When Sally came back home, she told everything that happened to her mother.

Her mom replied, "Honey, he just wants to see your underwear"

The next day, Sally wore a pretty blue dress to school, with a fiendish look on her face.

At recess, the same boy asked her to go on the monkey bars, and watched from directly below. But when she did this time, his eyes bulged in disbelief.

Sally went home and told her mother she went on the monkey bars for the boy again.

The mother replies, "He's tricking you, sweetie, he wants to see your underwear"

But sally replies, "No, I tricked him, today I didn't wear underwear!"