pure energy

brother says he saw a colleague running when he biked to a neighboring town last holy week... me: 'why was he running?' brother: 'he runs regularly... he does 30K...' mom: 'how's that? he goes back and forth?' brother: 'when i saw him he ran 30K one-way and then he took a ride going home...' me: 'why didn't he just run 15K-15K to and fro so he wouldn't have to take a ride going back?' just a suggestion... : )