Serious

1. unable to find a solution even after cracking my head
2. there is no solution to the problem, all the possible solutions tried already
3. the wheel has no problem walking the dog. very routine and consistent

Funny

1. Wait for it to heal back (I'm Wolverine version 2)
2. Look at my exhibitionist chicken/cock
3. I must be a donut(nut) to walk the dog