They trashed a dressing room. The horror.
Only, not the way you might think--you know, broken furniture, smashed TVs and such. Nope, they did something on the artistic side (uh, slightly less edgy, we admit) and had a little graffiti sesh on the wall.
Well, you naughty bad boys.
Niall Horan confessed to Fabulous magazine (via OneDirection.net): "If anyone gets a b****king, we usually run away cos we're really mature like that! We all do a lot of messing."
Oh do tell, Nialler. He explained, "We've been drawing on walls in dressing rooms. In Manchester, I was against the wall texting and Louis Tomlinson came up and drew around me with a pen. We had to repaint it."
The hilarious part--they repainted the wall. Even when they're bad, they're good.