I'm going to donate some of my sperm cells so I went to a center one day.The nurse gave me jar.After some time,I went back to the nurse with an empty jar.The nurse asked me why it was empty.I said "I couldnt do it myself.I tried one hand,then two,but it did not work.A nurse helped me,she used her hands and her mouth,but she cant help it too.I asked help for my neighbor and her driver but they cant do it too.No one can open this damn jar."