The Other Stall

I was barely sitting down when I heard a voice from the other stall saying: 

‘Hi, how are you?' 

I'm not the type to start a conversation in the restroom but I don't know what got into me, so I answered, somewhat embarrassed, 

‘Doin' just fine!'

And the other person says:

‘So what are you up to?' 

What kind of question is that? At that point, I'm thinking this is too bizarre so I say: 

‘Uhhh, I'm like you, just traveling!'

At this point I am just trying to get out as fast as I can when I hear another question.

‘Can I come over?' 

Ok, this question is just too weird for me but I figured I could just be polite and end the conversation

I tell them 

‘No…….I'm a little busy right now!!!'

Then I hear the person say nervously…

‘Listen, I'll have to call you back

There's an idiot in the other stall who keeps answering all my questions.