Depending on which route the mouse took he might find a boy that wasn't another blond haired citizen. The fact that he was also kind of perched on top of a low roof might have also been suspicious. Although, that's only because the real citizens usually freaked out whenever he tried using Zaiphon. Which judging by strange glowing runes up there with him, that's exactly what he was doing now.

Teito's Zaiphon had undoubtedly gotten rusty during the time he's been stuck here. It was difficult to stay in practice when there hadn't been anyone to practice with. The best he could do was just mess with strands every once and awhile and at least stay as sharp on that.