That thieving, spotty, little scrote is in for it big time.
I've been gradually buying Christmas presents for the last couple of weeks as I hate the last minute rush and now I discover my son has been at them.
Not the sly "had a nosey but put every thing back where it was", no, he's gone and done the "went through my mum's room found one of the presents and fucked off with it"
WHAT. THE. FUCK? I know that it was there yesterday as I checked and he was in my room alone last night messing on the computer while we were watching telly downstairs. Did he honestly think I wouldn't notice that it had gone? What kind of muppet does he take me for? Don't answer that.
I can't believe he is so devious, under-handed and sneaky.
I can only hope that his present was the only thing he found.
Tell him that his pressies been nicked, that you can't afford to get another, and you might consider calling the police.
See if he confesses.