"Gasoline!" Jack cried. "The tank is ruptured, I’m getting the hell out of here, Seamus!" And Seamus saw Jack lurch free as he undid his harness. The sudden movement caused him to scream. Seamus, like anyone else who was not a complete sociopath, felt sympathy for Jack and wanted to help him, or at least to call out some encouraging words. But those lovely altruistic instincts were completely suppressed, at the moment, by tactical calculations. Jack was actually doing the right thing, without any help, or even encouragement, from Seamus. If Seamus were to move or to call out now, he’d be giving the sniper exactly what the sniper wanted, and he wouldn’t be doing Jack any good at all.