A crew member had a foreign body implanted subcutaneously on his dorsum penis stealthily 6 years earlier by a fellow crew member without any medical training. He presented to the ship's medical centre after a week of pain, erythema and oedema over the foreign body, which was eventually removed by the patient, leaving behind a penile ulceration. He was treated conservatively initially with intravenous and then with oral antibiotics until complete secondary wound closure was achieved.