Grant Thornton Audit/Associate interview questions

I applied through my on campus career office and was sent an email saying I was granted a first round interview. Interview was pretty basic, mostly behavioral questions. I received a second round interview which is actually tomorrow so fingers crossed.

First round was on campus - pleasant and easy. Then a dinner with the partner and staff and other applicants before the second round of interviews in the office. Received an offer pretty quickly from the partner, but he did not take kindly to the fact that I was awaiting other offers. I eventually declined for a better opportunity and was treated extremely rudely by the partner when calling to decline. Glad I didn't join.