One of the great things about many Border Collies is they like to play and kind of have a sense of humor. 

Jack decided it would be fun if I chased him. You can see in the first picture a kind of mischievousness in his eyes.

Come play!

Can you catch me?

I'm way too fast for you!

Ok, I'll cut this way then.

Nothing like the straight on attack fake!

Tight cornering is an essential dodging technique

After all that running, nothing beats a snowbank to lick.