If you already don’t have a lot of hope for mankind, don’t read this article because it could make things a lot worse. Rat owners have recently been filming themselves with their pets looking into and checking their mouths. The rat can be seen licking the teeth and the tongue, simply because it likes the taste of plaque. Videos of rats in teens’ mouths have been popping up everywhere on the internet. And although it is advised that you clean your teeth two or three times a day, a rat is not a good substitute for a toothbrush and toothpaste. Rats can carry many different diseases such as meningitis and the plague… We’re hoping that these teens didn’t kiss anyone straight after! Ugh!