This is how Darth Vader knew what Luke was getting for Christmas…..
Darth Vader and Luke Skywalker were having a long drawn out duel on Christmas Eve. Lightsabers drawn and sparks flying Vader pinned Luke against a bulkhead and glared at him.
“I know what you’re getting for Christmas, Luke,” he said, “Ohhh, yes! I know!” Luke fought himself free and jumped to a higher platfrom just out of Vader’s reach.
“How do you know!?” Luke yelled at him, “How do you know what I’m getting for Christmas!?”
Darth Vader snarled, “The force is strong with me… I felt your presents.”