Man walks into a supermarket:
“Do you have a black condom?”
“Why black?”
“A friend passed away and I want to express my condolences to his wife.”

German concentration camp. Inmates were digging holes in the backyard. At one point the prison guard noticed that one of the shovels was standing still and upright. He began moving towards it, and shouting:
“Hey you, are you hiding behind the shovel, come out!” No response. He then went behind the shovel to see what was happening and shouted in shock:
“Oooh! There are three of them!!”