We're getting into a situation here .....
One of my pups
They are both getting to be about 5 months old now
Mike, is starting to realize
Running around free is a whole lot of fun 
But ....
this guy who's calling me all the time? What's up with that?
Mike's having serious come issues
Treats .... forget it
He's not really into food .... another story
Squeaky toys aren't as much fun as exploring outside
His brother is Perfect ... he comes when ever I call him
Mike is a lost cause
I really want them both to be able to run and get exercise
I know how much they love running free but I can't chance him
running off
Who else has had this problem and has had success with a training regime?