After another drink he might manage to forget about the mattress, too.
He suddenly managed to forget about his embarrassment the night before.
"How the devil did we both manage to forget the girl?"
He managed to forget all about vampires for a while.
Clear skies here and I managed to forget all about it.
He didn't work for the general convenience of the people, although everyone managed to forget that.
And then, later, 'At least for a while we both managed to forget'.
They even managed to forget the presence of the reporter.
They manage to forget the fact, in between the times it happens.
How had he managed to forget the rest of his people?