Ther stall who keeps answering

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 travelling!’  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.