bowel preparation
"This was by far the worst stuff I've ever had.  The liquid smelled like cherry soda but tasted like despair.  It was the most soul-destroying experience ever.  Getting the first batch down the pipes was difficult, due to the extreme nausea and horrifically bad taste.  The second batch was a fight to not vomit it up immediately.  I lost the will to live by the time it was over.  NEVER AGAIN."