[ Both of the boys can play Videl like a fiddle without her even realizing it. ]

Because it's something that happens sometimes when you're really sick. They're trying to teach people what to do if there's suddenly a really bad disease here.

[ Videl isn't entirely sure how making people act out symptoms or play dead is going to help prepare the populace of Verens for a deadly outbreak, but she figures Team Epsilon has their reasons. ]