There is somebody that I am having to work with right now that will not respond to a single thing I ask unless it is on a live phone call.

I will ask a relatively simple question via email, and then he will call me back an hour later and leave a voicemail just saying "Sorry I missed you, call me back" instead of even answering my simple question. I'm almost never at my desk, always running around out on the production floor (manufacturing engineer). I'll get his voicemail, call him back and leave HIM a voicemail re-iterating my question, and then I will also send an email again re-iterating my question.

We will go back and forth like this until EVENTUALLY we catch each other at the right time, then it's a quick 2-minute call. It takes days and days, sometimes over a week, to get one single answer that takes 2 minutes to talk over.

He is an external consultant I am working with, so I can't even just walk over to his desk. Absolutely infuriating. As soon as this project is done I am never asking him another question again, I'll find someone else. (I inherited the project and don't have the resources to find another consultant right now)

"I need the answer in an email, thanks."