1. it makes you gaunt, skinny and unattractive
2. it makes you weaker, not stronger
3. it maims your orthopedic system - causes arthritis, chondromalacia, shin splints, stress fractures, tendonitis, etc.
4. it ruins your social life, or, in the worst cases, becomes your social life
5. you're a fag
6. football players and wrestlers can kick your ass
7. most of you are slow. what does your shitty 15 minute (or god forbid, 16 minute) 5K matter when teenagers from Africa are running 12 minutes? What does your shitty 2:30 marathon count for when women have run under 2:20? if you can't at least break the women's WR, there is no point in your athletic career.
8. girls don't care about you
9. 90% of girl runners in high school and college are anorexic and have NO breasts to speak of. disgusting!
10. most of you are emotionally dependent on running and would kill yourselves without it.