Word for spending lots of effort to be lazy

I am looking for a word to describe a situation where someone would go out of their way to create a way to save a few seconds.

Example:

Ben: Merry Christmas

Matt: Merry Christmas bud

Ryan:: Merry Christmas

Walter: ^

Ben: Walter don't be so lazy

Walter: Should I instead write a script to check for people saying "Merry Christmas" and reply the same if 2 or more different people do it?

The point here is that it would take Walter a lot longer to write the script checking to see if two people had said Marry Christmas and insert an automatic reply than it would to just reply with Merry Christmas. That's a lot of effort to go to to avoid manually typing two little words.

What's a good term for this type of behaviour?