I'll take that question, if I could, Mr. Doherty.
I'll reiterate that the answer is never. The good news is that the tarmac delays you're speaking to are relatively rare events. We had a very significant situation. I think you're pointing to the night of the 19th in Vancouver where we had numerous airlines, numerous aircraft in gridlock and significant tarmac delays.
We hope to be a part of working through that with the Vancouver Airport Authority and all constituents to ensure that we can find a way to build resilience into that. It was unacceptable on many levels.