1. vicious little dogs who chase me down the street

2. any insect with a stinger swarming around my head

3. the garbage truck

4. innocent by-standers

5. cars coming down the street that I'm about to cross

6. 20-degree or below weather

7. rain

8. someone running in front of me

9. bad smells

10. thinking about guinea pigs

So, now you know how to have the perfect workout. Combine any, or ALL, of these things and you'll be fit as a fiddle in no time… maybe. =)