Rolf had figured based on the journal entry that there would be some mess. Somehow, however, he'd severely underestimated the sheer scope of what a dirty Ant could bring to the game. He should know better, he knew that, but somehow he thought a lot like Rose did -- that Ant was still a wiggle. Even though he was a very large one at this point.
His lips twitched and he very firmly told himself not to laugh, or Rose would curse him. "Well. I see I'm just a little late to the party," he said dryly from the (relative) safety of the doorway.