I agree most definitely with practice, practice,practice. However, with most Disaster Recovery scenarios I have had experience with in the last 20 years, the actual event never goes as planned in our dry runs, and they most definitely are different everytime around. Someone once told me "Don't panic!". Well... that is definitely easier said than done when you are in the middle of the lake up to your rear-end in alligators. I think that should be restated as "Don't do anything rash when you first feel that pang of panic." As far as managers raising their voice at you, I have a real good comeback for that and have used it in the past too. "Sir, do you have anything to contribute besides browbeating everyone here? If not, please leave the server room and let the experts think so we can analyze and address this issue for you as quick as possible, thank you.":-D
"Technology is a weird thing. It brings you great gifts with one hand, and it stabs you in the back with the other. ...:-D"