Miles grinned at her in a very satisfied way, but he wasn't expecting her to summon her wand.
Before he could protest, his legs just went out from under him. He swallowed water as she pushed him under, and he had a look of surprise on his face when he managed to surface.
Sputtering away, he gave her a dangerous look. "That wasn't fair, Mrs Bletchley," He stepped back towards her, attempting to take her wand from her hand. He gave her a smouldering look, hoping to distract her with a kiss, or something equally as underhanded. But he was amused, and obviously, so was she.