Spidey yelped and jerked his hand away, then reconsidered in a split second and caught the cube in both hands before it could hit the pavement. "Yikes, man! What happens if they get squashed?"

Still cradling the cube gently, he rolled it from side to side, looking at it from all angles. An entire person, harmlessly squashed into a cube he could balance on a finger. (Well, that anyone could balance on a finger. Spidey could probably balance a small car -- a Volkswagen Beetle for certain, maybe even a Civic -- on his index finger, not that he's ever tried.)

"This really doesn't hurt them? Because I've gotta say this is kinda creepy. Scientifically amazing, mind you, but creepy."