Nezumi notices them from the corner of the eye. He hears the purr of a motorbike first, a bit too close to be in its designated lane, and when he glances to the side, he sees a young man—a boy, still—get off and happily go on about his business.
The CCTV cameras will catch him, Nezumi knows he won't get away with it, which is why he doesn't do or say anything. Upholding law isn't in his job description. He pays and walks out of the convenience store.
And there, just around the corner, like a giant hungry beast, Nezumi sees a tow truck. He looks towards the motorbike, left behind by its owner, and when he sees the owner nearby, purchasing something from a vending machine, he makes a decision.
"Excuse me? Is that your motorbike right there?" Nezumi doesn't beat around the bush. He nudges his chin towards the approaching tow truck. "You might want to put it elsewhere, or it's gonna get taken away."
Hiei glances up sharply at the mention of his bike, locating the tall stranger immediately before looking away again, his attention drawn by the sound of the oncoming truck.
He swears under his breath as he makes for his bike, still parked on the sidewalk just outside the store, but before he takes off he stops to pull a purple permanent marker out of his jacket pocket, and draw the icon of an eye on the bottom corner of the nearest sign.
He hasn't been here for long, which means someone in this area has not only been paying enough attention to what's going on, but has no problem picking up the phone just to ruin someone else's day. And anyone who's willing to call a tow truck for a motorcycle parked on the sidewalk, likely wouldn't hesitate to call the cops either.
He would know better, next time, and try to avoid the area.
But assholes calling tow trucks aren't the only ones paying attention, and Hiei suddenly remembers the tall stranger. He turns again to study the man as he mounts his bike, and wonders why the guy even bothered to mention it. He doesn't really strike Hiei as the concerned citizen type, with that stoic expression, but there is something unnervingly quiet about the man that makes him pause.
The acknowledgement feels necessary, somehow. But with that over with, Hiei turns his attention back to the street, revving the engine on his motorcycle before cutting dangerously across traffic, heading past the tow truck in the opposite direction.