Never Crossing the Beginning Line

Gopal and Sham were friends
Who knew each other both ends,
Sham was always lazy
While Gopal used to keep himself busy.

One day from school while walking back home
They discussed the need to start an exercise program
As Sham was stout,
Gopal asked Sham to do some thing to remain fit.

Sham said, “I swim 4days a week,
And run on remaining 3 days.”
Surprised Gopal enquired, “How long have you been doing this?”
He replied, “oh, I don’t start until next week!.”