A compact man with curly black hair and a beard clomped through the Devils’ dressing room on skates after practice Saturday, stashing his black helmet in his locker before moving on to the next episode of his improbable and rollicking springtime adventure. “How can you not enjoy this? It’s the Stanley Cup playoffs,” the man, Stephen Gionta, said. “This is every kid’s dream. If you can’t enjoy it, I don’t know what you can enjoy. I’m just trying to take the opportunity and run with it.”