About ten minutes later (although, really, it seemed longer), Biff's "rest time" was interrupted by a voice.
"They weren't too much trouble, were they?" a woman asked.
Biff turned and saw a thirty-something woman walking towards him. She was a total MILF. Normally, that would get a rise out of him, but for some reason, he had no reaction to it at all. What was wrong with him?
"Mom? Are you listening to me?" the woman asked him.
"Huh?" Did she just call him "Mom"?
"I was wondering how the kids were," she said, sitting down next to him on the bench.