From 1993-1998 I was a grad student in Rainer Weiss' LIGO group at MIT. One day, a brand new student gave Rai Weiss his very first lab data report ever. As Rai read the report, he started shaking his head and grunting, louder and louder, angrier and angrier. Finally, Rai closed the report, slammed it on the table, looked the student in the eyes, and said to him (in front of all of us): "Well, you fucked up." Then Rai stood up and left the room. As the new student stood there trembling, one of the other grad students (B.L.) looked at the young guy, and said: "Don't worry, WE still love you!"