Thank god its never happened to me but I can tell you what happened to a friend.
It was a cold, snowing winter night here in NY.
The runways were clogged with slush and ice.
Into their takeoff roll the Capt. saw that they would never reach flying speed with the runway remaining.
He aborted the takeoff but because of the ice on the runway, unfortunately he was not able to stop the aircraft before it went into the bay off the end of the runway. He survived. Every pilot knows that if you do survive an incident, you are to immediately call your union, Airline Pilots Association, and make no comments on the accident until a you have spoken to a union lawyer. The union advised him to go home at once and say nothing. At the scene, all the police, fire and emergency units are looking for the Capt. When they found out he left the scene and went home everyone was outraged. Here this poor guy is doing what the union told him to do and everyone wants to hang the guy. He lost his job. Its not a perfect system and it needs changes but every pilot knows. You say NOTHING until you have spoken to the union and its lawyer has arrived on the scene. It sounds cold and harsh but your career is on the line and who can you trust? Not the carrier thats for damn sure.