How we cite our quotes: Citations follow this format: (Chapter.Paragraph)
Quote #13
He [Yossarian] studied every floating object fearfully for some gruesome sign of Clevinger and Orr, prepared for any morbid shock but the shock McWatt gave him one day with the plane that came blasting suddenly into sight out of the distant stillness and hurtled mercilessly along the shore line with a great growling, clattering roar over the bobbing raft on which blond, pale Kid Sampson, his naked sides scrawny even from so far away, leaped clownishly up to touch it at the exact moment some arbitrary gust of wind or minor miscalculation of McWatt's senses dropped the speeding plane down just low enough for a propeller to slice him half away. (30.33)
It is sheer bad luck – an "arbitrary gust of wind or minor miscalculation" – that kills Kid Sampson, and not any direct fault of McWatt. Yet this event has dire consequences: McWatt's guilt and suicide, Doc Daneeka's fake death, and the mission increase to seventy.
Quote #14
He [Yossarian] could not make them (the new roomies) understand that he was a crotchety old fogey of twenty-eight, that he belonged to another generation, another era, another world, that having a good time bored him and was not worth the effort, and that they bored him, too. (32.11)
Yossarian is cynical about the new generation, with their constant pranks and fun.
Quote #15
But Chief White Halfoat felt cold and was already making plans to move up into the hospital to die of pneumonia […] Captain Flume had moved back into his trailer. Here was an omen of unmistakable meaning. (32.13)
This is absurd because Halfoat takes Flume's return as an omen of his coming death. But there was an earlier allusion to Flume's promise to come back when Halfoat dies of pneumonia (which he prophesied). Apparently Halfoat has taken on that mentality, which is even more absurd because it was the chaplain who heard the prophecy, not Halfoat.