Miguel tilted his head a little at Arcturus' idea that he was never a muggle in the first place, and decided to go with it. It would be a shock-load easier than any other explanation, really. "I didn't think you were horrid at all. Believe me, whatever you think you might have done is nothing compared to what one of the bit-heads I went to school with used to do."
The scars caught his attention and his eyes flashed red for a moment as he looked closer, but they were faded and clearly not from the station. But the description of the person who'd threatened him... "If she smells you?" he repeated. That narrowed it down to Maryanne or Laura, really, and neither of those would be classed as Muggle using Arcturus's 'Powers are Magic' rule. "There are people here who can track you by scent. They're not muggles, it's part of their powers."