Yes, you read that right. From Inside Higher Education:
Students at the University of East Anglia are encouraging their fellow students to skip their first trip to the toilet in the morning and to, instead, urinate in the shower, the BBC reported. The idea is to save water by avoiding the first flush of the day, and student materials (see below) suggest significant water savings could be achieved. Students are being encouraged to pledge their participation with the #gowiththeflow hashtag on Twitter.
Apart from the gross-out factor, how does the math work here? You could for instance compare the water amounts involved in one flush versus one extra minute of shower time. How do these compare with one person’s total daily water use?