Chapitre 148: National Secrets part 2

And if the other knew how to play this game then so did Mark. And he felt as if between the two of them Mark was the more experienced one in this field. After all, he had handled more than one base's negotiation at a time.

"I'm sure our base leader would pass this information on to your base leader when the time comes. Now please help us out" 

They were wasting precious time in negotiation which could be better used to find Rika. the professor just needed to think objectively and he could see that he could have this favour returned in the future. 

But he was being short-sighted and greedy, wasting both of their time. It was irritating to Mark, enough to make him snap. And he decided to let the other know just how exactly he felt.