Ah, replying to bookl0ver again... what makes you even think I have
The thought is appreciated though, especially as I reckon I'd get out, so I'll remember your mercy as I contemplate this one...
You'll be wearing a standard school uniform: a white shirt, a red/white striped tie, standard issue grey school trousers. I would sit you in a chair which came with separate arm rests. Your shirt would be on back to front, and buttoned around the hard back of the chair, fixing your torso tight to it. I would bind your arms to their respective arm rests with plenty spare ties, snaking up and down your arms and fixing them in place from elbow to wrist. I would use lengths of elastic to be wrapped around your body; around the shoulders/ arms back to the upper chest to fix that all together - pulled to maximum tightness; you're not going anywhere. For the fingers, I would first intertwine long lengths of string around them, all bound against the arm rest too. Then I would wrap duct tape all over the hands, making it impossible to move your hands and fingers but also keeping them safely warm. After that, I'd pull your trousers up as far as they will go without ripping them, so they'll be pressed tight, with the hem in the general area of your navel. I'd hold that in place by adding a belt, buckled as tight as possible. I'd tie your legs against separate legs of the chair. Next, the chair would be knocked over backwards, and the back legs fastened down so you can't move it. You don't need your socks on your feet, so they'd be removed. I'd tickle your bare feet for a time of my choosing, and if you tried to cry out during that I'd hand-gag you. Afterwards, I'd ball up the socks and gag you with them.
Now, where to put you? I know... how about, right in front of your computer, which just happens to be on and with the open windows full of your Tugs sites and files? Good luck escaping in time to close them before anyone finds you