Rainbow Dash and Lighting Dust never expected that the last trial to become a Wonderbold was to stay inside of one during the last month of the campment.
 
They would have to learn to live together in that tight space and do not bother the wonderbold who had the kindness become their host.
 
In fact, everytime that the rookies cause a ruckus inside their Wonderbolt,they would be punished with a lengthening of the trial of an entire week.
 
Rainbow Dash and Lighting Dust had a fight every single day of the trial. Soarin’ has already accustomed to having them as permanent guests and he doesn’t even mind their constant fights, but the rules are the rule, so they have still a lot of time to spend together.

Can’t post original source without getting error 422, so here’s the source:
 
http://aryion.com/g4/view/235059