Which is when she sees a glowing, naked boy being flung across the air into an office-building window. 

What.

If she misses this bus she should be able to take the next one. She stops to see what's going on.

The boy streaks out of the broken window like a living comet. It's probably difficult to see, but there's a cut on his ankle, seeping something black and thick that drips to the Earth.

And now he's chasing after a rainbow skinned boy in what looks like a flying bathtub.

This could be dangerous but he's still mostly too confused to come up with a response.

Riley continues staring.

(Neutrally-valenced surprise is the one emotion that mostly runs autonomously)

Something black and slimy slithers down the street like a snake. Something in its substance senses young flesh. It surreptitiously slips under Riley’s pants leg.

EW EW EW EW EW!

Why is San Francisco so terrible?

Riley will try to get the slimy thing off her leg.

It's too late, the intruder has already wormed its way into her pores and what orifices it can find. 

Ewwwwww!

This is a catastrophe, but Disgust really doesn't want to be the one to have Riley turn around and go back to the new house.

"Okay. Okay. This seems really bad. I think we should go back, and tell mom and dad what happened..."

Good, Fear can be the one to have Riley turn around and go back to the new house.

"We are not going back to that house."

Disgust will shove Anger aside and start having Riley turn around and go back to the new house.

Then she thinks of something else they can try first.

Riley will wave both arms and shout "HEY FLYING PEOPLE!!!! FLYING PEOPLE!!!!"

The boys both look down. 

"Yeah?" asks the glowing one?

Okay, this is really embarrassing to say, but she doesn't think she can solve this herself and that means she'll have to tell people about it.

"A GROSS SLIME THING CRAWLED UP MY BUTT AND MY VAGINA!!! YOU HAVE MAGIC POWERS, CAN YOU GET IT OUT?!!"

The boys exchange glances. They each descend into the murmuring crowd in front of Riley. 

The rainbow boy stands upright as his bathtub vanishes. Turns out he's as naked as the glowing blond one. "Ah, no. But it might not be a bad thing?"

"Not a bad thing!?"

Yeah Disgust is pretty sure this is in fact a bad thing.

OK Fear definitely needs to help out here before the slime thing does whatever else it's going to do and also before Riley antagonizes the magic people or something.

Why is San Francisco so terrible?

"Excuse me?!"

“You’re gonna be like us.”

That seems like it's probably a good thing.  Probably in better circumstances she'd be happy about it.

"Oh.

What does that mean?"