War time humor

After World War 2 my mom left Ukraine and went to Germany to live in a displacement camp for 7 years, before she immigrated here to the United States with her mom and brother. While she was in Germany she went to nursing school. While in training she needed to sponge bath a German officer. Apparently her training was not sophisticated as it is here in the states. While bathing him she had to wash his private parts, she was afraid to lift his penis so she used (Thongs for Hot Dogs).