There are hundreds, if not thousands, of posts here on FT telling where exactly that has occurred. Starting soon after birth with entitled mummies threatening that darling young Tristan will vomit all over you if you don't give up your seat all the way to whiskery old grannies waving their walking sticks in a threatening manner if you won't take their 74E when they're already settled in your 2B.

So no, there's no imagination required. It happens.