Terrorizing a student until he's crying and screaming for help does not fall under the category of "hijinks and pranks." That's called being a tormentor. And the fact that when discussing the incident,
you actually laughed about it pretty much nullifies any idea that you're sincerely sorry for what you did which means either you don't actually understand what it is you did or you don't care, neither of which paints a very flattering portrait of you because it means either you're an idiot or an asshole.
You claim you're a different person now than you were then, but the only evidence you offer to support that claim is that "I’m married, have five sons, five daughters-in-law, and now 18 grandchildren." Sorry, Mitt, but bullies have families, too. It doesn't make them any less despicable.
You might not remember the kids you tormented and you might not remember what it is you actually did to them, but here's the thing, Mitt. They do, and they've carried those events with them the rest of their lives. For you to such little compassion that you would brush these incidents off as merely being a part of growing up is disgusting. You didn't care about what you did then, and you certainly don't care about it now, as you've made abundantly clear. You know what? The more I learn about you, the more loathsome you become.