Vomiting.

There was a lot of it coming from her friend, and a concerned Dora wondered why, and also why was he still playing? That should be a rule, she decided, after he vomited on Alice's broom and she turned her attention to that for a moment, that players vomiting could not be allowed to play. It made things messy.

She kept her eyes West, and thought about cleaning spells, and reasons why vomiting could happen, and reasons why next time, he should just not play. Vomit reasons.

They distracted from everything else.