The persons (both, if you will be pleased to excuse them, in bed) are myself and my son.
I must excuse myself in the best way I can.
This doesn't excuse cheating in any way: but it is food for thought.
He could excuse his own thoughtlessness, at least in part.
For a man to excuse himself in this way and stop listening is much better than trying to explain away her hurt.
He supposed he could excuse it this once, in a good cause.
The answer is, you should excuse the expression, in the future.
This is not to excuse her but to place her in context.
She excused herself in a few minutes and was gone for a quarter of an hour.
After a few more minutes passed, Catherine excused herself in the most natural manner possible.