That is why they make gel or soft tip devices. It is never a good idea to insert an object analy if it doesn't have a base or handle to pull it back out.
All of my siblings are either ER nurses or physicians, I'm the weird one who went the software engineer route, but they always say stuff like this happens way more that people think. Not just vibrators...
My brother had a patient who got a critter stuck up there and it just completely shredded his insides, he's seen snakes, baseballs, shampoo bottles, all kinds of really weird crap (pun intended)
The list of things that they see and have stories about, I think would make even Bonn blush (maybe... probably not).