If he is scared enough, sometimes. He doesn't like it when people sneak up on him, come up from behind. But also just...crowds in general are usually not good. Because that usually means walkers since there aren't many people left that haven't been bitten.

[Walkers being basically her name for the zombies back home. Not that Terezi might be aware of that of course. But she does hope they find AJ if he is here, quick.]