Fehlleistung Infolge Unbewusster Todeswünsche Gegen Das Einzige Kind. (A Symptomatic Act Following Unconscious Death Wishes Against an Only Child.): Hugo Klajn. Int. Ztschr. f. Psa. u. Imago, XXIV, 1939, pp. 333–338.

Klajn describes a very impressive case of a complicated symptomatic act built up by acts of forgetting, errors, and by acts of omission performed by two persons, the parents of a young morphinist, who were worried that their son might commit suicide. This was objectively absolutely unjustified because the son had not the slightest intention of doing so. They sent him a package of clothes in which he found, to his surprise, a gun that had been included by mistake. A thorough investigation showed that this mistake had been accomplished by a series of slips. The mother had asked the father to remove the gun from his night table where it would have been too easily accessible to the son. The father intending to bring the gun to his office, put the gun in the pocket of his overcoat, and forgot it entirely. When the package was to be mailed to the son, the father proposed to the mother that they send the son the father's overcoat because the son might need it more than he did. The cautious mother looked through the pockets of all the clothes to make sure that no morphin was hidden there, and in one of the pockets of the overcoat she placed a camera: but she omitted to examine the pocket containing the gun.