A badly constipated man went to the doctors. The doctor prescribed suppositories and told the man to take one once every four hours. The man left the doctor, happy that his problem would soon be gone.
When he got home, he took a suppository, swallowing it with a glass of water. Four hours passed. Nothing happened. But he figured that these things take time, so he swallowed another one, hoping he would reap the benefits very soon. After several days of taking the suppositories every four hours, he was still constipated, so he returned to the doctor.
When he explained that he took one every four hours, as prescribed, the doctor exclaimed, "What are you doing? Swallowing them?"
The man replied sarcastically, "No, I'm shoving them up my arse!!!"