"Serve him right" (original title)
Alpine advice from a founder of modern mountaineering
It is sometimes thought that for complete security, in case of the yielding of a snow bridge, the party tied together should be not less than three in number; in order that two may be available to draw out of a crevasse the one who may have fallen.
But if the simple precaution of keeping eight or ten paces apart be observed by two travellers who are tied together, there is not the slightest risk incurred. The whole mass of snow covering a crevasse does not give way together, and a moderate amount of assistance from the rope will always enable the traveller to extricate himself.