“This mirror smells funny”

@Niggoslav_Krawczyk  
So? Places like Dodge Junction & Appleoosa are too.

@sargesprinkles  
Probably just no public restrooms. Ponyville’s been said to have a public water system to the homes (Spike’s showers, Fluttershy’s + CAkes’ bathrooms), so it would be expected they’d have facilities in homes too. But some place like Dodge, there’s probably no running water, so a communal facility is common.
 
And for here, the common male/female iconographs that we use for restroom IDs don’t have easy pony equivalents (its based on the concept of a dress) so Twilight may have figured it was a restroom but no idea that it was gender-based.

@Ripple_Shine Well it is a farming community…

@sargesprinkles  
Okay, wait. Why would a place like Dodge Junction have restrooms whereas a more advanced place like Ponyville wouldn’t? They’d at least have the same kind of restrooms as Dodge Junction.

@Dylanius  
that wasn’t Ponyville, that was Dodge Junction. as far as we know, Ponyville is bathroomless.

@sargesprinkles  
they DO have outhouses, though.

they don’t have bathrooms in Ponyville

Michael Jackson comes out and starts singing Bad.