After several dismissive attempts (3) -- we have haphazardly weaved together an Arduino Uno with cardboard, ultrasonic sensor, servo(s) and stepper(s) to remind, pester and intolerate your posture.
This project was hobbled together as a slight against the current incarnation of the maker community that at one time had been invested in improving humanity -- now succumbed to vanity and novelty. This project demonstrates that even with little to nothing applied, useless can harbor solution. Plaguing social venues with the antithesis breeds a consequence of evolutionary latency.
You...you know who you are.