RJT, thank you, I was wondering when someone would make that all too obvious suggestion. It's far easier to suffocate a pilot with foam than a gas turbine which as we know is very reluctant to stop by this method even when stationary. When spinning like that you'd have no chance whatsoever.
As to backing vehicles into the thing, does anyone really imagine a firecrew would be daft enough to risk the flak and deluge of lawsuits that would inevitably follow? No way could you avoid being accused of hurting the crew. Anyway, how could they know without the advantage of 20/20 armchair hindsight what the alternative result might be in order to prompt such drastic last-ditch action? If you wanted to risk an "explosion" (sic) that would be a good way of going about it.