Here is a versified version I wrote today. Sometimes that's quite a good way to get things out of one's system:

"You know the way each Christmas we have dad along to stay.
Well this year, for a change, we thought we'd like to get away.
A chance for him and you to share a Christmas with each other".
I wrote out the suggestion, and I sent it to the brother:
So thank you kindly, brother, take it easy, do not fret.
Your Christmas might be altered, but no need to get upset.
Your Christmas Present won't be quite the same as Christmas Past ,
But think of Christmas Still to Come – well, this might be the last..

I wasn't really teasing, but I had a good idea
That when he got the message then some problems might appear.
But now that dad is 95 there's surely no need to explain
If they don't give him Christmas soon the chance won't come again.
So thank you kindly, brother, take it easy, do not fret.
Your Christmas might be altered, but no need to get upset.
Your Christmas Present won't be quite the same as Christmas Past ,
But think of Christmas Still to Come – well, this might be the last..

"Oh we'd really love to have him, but it's hard to see a way.
Our house has stairs. It's far too small. I'm working Boxing Day..
You say you'd like to get away, but are you really sure?
I really think that dad would sooner come to you once more.
So said the kindly brother, "Take it easy, do not fret.
Your Christmas time together would be better not upset.
Maybe best that Christmas Present is the same as Christmas Past ,
And as for Christmas Still to Come – well, this might be the last."

"But if you really have to go here's how it can be done.
And dad could come and stay up here - it really might be fun.
There is a nursing home nearby, I've been along so see,
And they are sure by Christmas there will be a vacancy.
"My heart quite sank when I walked in to see those poor old dears,
Asleep or staring into space, and clearly unawares
But that's because the entrance is via the dementia ward,
Once past that it gets better, of that I've been assured.
So said the kindly brother, "Take it easy, do not fret.
His Christmas might be altered, but no need to get upset.
His Christmas Present won't be quite the same as Christmas Past ,
But as for Christmas Still to Come – well, this might be the last."

"The price that I was quoted was one twenty pounds a day,
And I'm sure that they would find some easy way for dad to pay.
Just you get him to the airport, he'll be fine to fly alone,
And we'd meet him at the other end and we'd take him to the home."
Well - thank you kindly, brother, take it easy, do not fret.
Your Christmas time won't be disturbed, no need to get upset.
Our Christmas Present will be much the same as Christmas Past ,
Though as for Christmas Still to Come – well, this might be the last.