https://www.quora.com/How-long-does-an-international-airport-hold-a-person-s-passport-and-visa-after-they-have-entered-the-country
https://www.quora.com/Can-someone-who-leaves-their-country-for-another-return-home-whenever-they-want-even-if-theres-no-one-waiting-for-them
https://www.quora.com/How-long-can-someone-stay-outside-of-their-home-country-before-getting-into-trouble-with-immigration-authorities-or-other-stuff
https://www.quora.com/What-are-the-consequences-for-someone-who-overstays-their-visit-and-their-passport-expires-while-they-are-in-the-country
https://www.quora.com/Can-you-check-in-for-a-flight-at-an-international-airport-and-then-leave-the-airport-before-boarding-the-plane-or-do-you-have-to-stay-at-the-airport-until-the-plane-takes-off
