Resort to the use of phantasy in conditions of stress in individuals and in groups was a preoccupation of the author in 1944 (1). The fact that the subject was in mind occasioned the discovery of a “psychological epidemic”. The affairs to be described sound trivial, but have been thought needing of record as a factual account of group infantilisms which, although doubtless of common occurrence, are not much documented. The passage of fifteen years was thought proper to minimize chance of recognition of any people concerned, but this does not affect the validity of the observations. At the expense of some obscurity, cyphers are used to designate individuals and other clues to identity have been avoided.