Sven & Jack are biking buddies.
Why they don't bike together:
Sven goes at around 120km/h ;
Jack goes at around 12km/h.

. biking theories .
1_ Optimist: If it's always been downhill, don't fret - Uphill is coming.
2_ Pessimist: Ditto.
3_ Slopes are seldom noticed when you are driving.

Overwhelmed by fatigue.
Went cycling along Upper Thomson Road.
Took a break half an hour later,
Sat outside a closed restaurant,
Then it started to drizzle.
Cycled home.