Golden Gifts

Adam open his eyes and woke up his wife Susan, they got up and ready and went down stairs to see what they saw every year on Christmas, since she was five, Lisa always got up and went down stairs, instead of waking her parents up, she made her dad, mum, and herself breakfast, and what always confused her parents was how she knew what cereal they were in the mood for. Always.
Now, Lisa is twelve now, and will now make her dad coffee and her mum tea as well. But I'm side tracking. After Lisa had opened her presents, she presented two boxes, wrapped in gold and silver striped wrapping paper. They were also two different sizes, she gave her mum the smallest, opening it, her mother smiled, in it was a adorable necklace with a golden heart. Lisa then gave her fathers his, but before he opened it, she stated, "according to my teacher I can only give you one of these, and I hope you never have to use it."
Her father, confused, opened the box, to find it.... Empty, Adam looked at his daughter and asked, "what's it meant to be."
To which Lisa ran up and hugged her father, crying, she said, "I hope you never find out."

Nine years later, the father came home on Christmas after having quiet a big operation, he saw on the kitchen counter was a note from his daughter, it read «Dad, I'm sorry to say that you have to find out what I gave you for Christmas nine years ago, the box wasn't empty. It was full of kisses as I thought you might need them, but between the box and the wrapping paper you'll find a another note.» So, Adam went to were the box was and carefully un wrapped the box and found the note, the further Adam read the note, the harder it became to read it, by the end he was drowned with sorrow, and after Susan read the note she had to console herself on Adams shoulder. On the note, written in purple colouring pencil, in the cute handwriting that twelve year olds have, was «dear daddy, I heard you and mum talking about something called colesterhol, and about how it's so high, so since I wanted to give you and mummy the same thing, I thought it would be nice, merry Christmas.»