.

This happened in the middle of last week. It was around 6 pm. Issues were dropping in like bird droppings on a statue.
I was staring at the growing unattended list in my inbox in a kind of glazed expressionless trance which can only come from continuously looking at hopelessness.
Felt a tap on my shoulder. "I need you to go ahead and carry out an exercise in facial expression control", said my manager to a very startled me.
"Me..?? But I... I mean..", I began. "Go..!", came the interruption, with some decisive thumb pointing ,not unlike a swimming instructor telling his very scared student to jump in.
What happened for the next 30 minutes can only be described as hilariously pitiful. One moment I wanted to laugh out loud...really hard, the next I was enveloped in a kind of why-on-earth-I-am-here fear. Every single one of my facial muscles was hurting from a concerted effort to not let them do what they were attempting to. I did indeed periodically nod in order to break the monotony of thought (self pity!) , and so did the other person. I am pretty sure both of us were thinking that the other one is,without question,correct.
Tips on how to keep a straight face while interviewing someone (while knowing you absolutely dont belong there) would be greatly appreciated..