Take a look at the Concorde accident, if they had the opportunity to abort they no doubt would have and the outcome may have been different. The Quantas A380 is another example. It didn't happen on the ground, but an uncontained engine failure nearly brought the plane down. I forget the number, I think something like 56, ECAM messages that they had to deal with. If it's possible to stay on the ground safely, I'm staying on the ground.