[quote=@King Kindred]
You know what I just realized? For a trio of geniuses neither Caty, David, or Danny thought about texting or calling the other interns before they joined them at the park.
[/quote]

There's no guarantee they would have everyone's numbers in their phones. The interns have mostly only known each other for a month and have seen each other mostly every day, plus perhaps they didn't want to waste time trying to explain the situation. Though, still, you do bring up a fair point I hadn't considered, so I can edit my intro post to include them texting out the warning to the other interns.