At a church potluck on Sunday, I was challenged during conversation with another father not to give in to the lure of mindless entertainment. For much of my life, I’ve allowed “entertainment” to have some room to grow; it’s OK to indulge in entertainment as long as it doesn’t get out of hand. In college, I stopped playing video games because I saw what a waste of time they were. But I still indulge in an iPhone game every so often…