Can someone please help me, please please please??

In the paragraph below, the author uses verbal irony, suggesting something different from what is literally meant. In this paragraph, what is Crane suggesting about the timing of shipwrecks? Explain.

Shipwrecks are apropos of nothing. If men could only train for them and have them occur when the men had reached pink condition, there would be less drowning at sea. Of the four in the dinghy none had slept any time worth mentioning for two days and two nights previous to embarking in the dinghy, and in the excitement of clambering about the deck of a foundering11 ship they hadalso forgotten to eat heartily.