Agree.
“I will give you one more hour to produce your witness or we will move to other business.”
“He’s not answering his phone and no one has seen him since he went to speak with the Democrats at the park last night. They invited him to a picnic.”
"Oh wait, they've found him taking a dirt nap at Fort Marcy Park. Unfortunately he's tied up, and won't be able to give his sworn deposition at this time."