Having testified before Congressional committees many times, one often feels like a punching bag while the politicians had their sound bytes on television.
As you sit there giving your testimony remember to stay calm and in control of yourself, show respect, never appear arrogant, avoid any sense of self-importance, try to be responsive and helpful, keep your answers short and cogent, and never blow up or show your impatience.
Even if they ask, and they always will, never share your personal opinion. You are there to represent your agency, not yourself.
“Watching a legislature in session is like attending an Italian opera. One person gets up to sing and four others stab him in the back.”
Cite: Ashworth, Kenneth (2001) CAUGHT BETWEEN THE DOG AND THE FIREPLUG: or How to Survive Public Service, Washington, DC, Georgetown University Press