So one of the gifts I found for Dev is a Tardis alarm clock. It makes the wonderful Tardis sound while lights pulse. I thought it would be a good idea to set the time and all before wrapping it. That way, it would be ready to go out of the box. I even set up the alarm to sound at the time he'd need to wake up for work on Thursday. I wrapped it and the other presents, then set them under the tree.
Then I remembered he wouldn't be opening it until tomorrow morning, most likely AFTER the 7:00am alarm time I'd set.
I unwrapped it, reset the alarm, and wrapped it again. If Dev isn't up by 9:00 tomorrow morning, it'll sound as if a Tardis is arriving under the tree.