If You Spot A Phone Charger In Your Hotel Room, Get Out Immediately!!! ⚠️

Staying in a hotel is a relaxing experience most of the time.
But sometimes it can be overshadowed by some pretty unpleasant things.
A dirty bathroom, a broken chair... or a phone charger left in the room.
Why is it a warning indicating you should leave your room ASAP?
Could anyone spy on you through a phone charger?