Sales/Trading Intern

I had been introduced to a current employee through a friend. He referred my name to HR, and through an online application I was selected for a 1st round interview. The interview was scheduled by HR. I was interviewed by two relatively senior (VP/MD) people, one from trading and one from sales. One of the interviewers was very friendly. The other was constantly pressuring me, called me out when I said "um" and imposed shrinking time limits on my answers to mini market sizing/estimation style questions. They both seemed like relatively interesting people though.