Awkward Restroom Chat

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 men's restroom, but I don't know what got into me, so I answered, somewhat embarrassed, 'I'm doing just fine."

And the other guy 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 just traveling for work."

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 him, "No.....I'm a little busy right now!"

Then I hear the guy say nervously...

"Listen, I'll have to call you back. Some guy is in the other stall answering all my questions."