Harry's mouth quirked a little, despite his mood. If he'd been less irritable, he might have let a startled laugh loose at the dry comment. As it was he just threw Theo a look and then ran a damp hand through his hair, groaning. "Probably Peeves, sod him," he grumbled.
He kicked his foot through the water a little, watching it splash. If he died by drowning in a loo, it'd make for a bloody rotten end to all of this. He doubted it, but it was a grimly funny sort of thought.