This special bath mat is a great idea to give people a scare when they step out of the shower. When getting wet, the water drops that touch it turn red, making it look like a bloody massacre in your bathroom.
It will make your friends immediately check themselves to see where the blood is coming from.
Don’t worry, the red marks disappear in a couple of minutes making the sheets ready to be used another time.
The bloody bathmats are available in several sizes, going up to 25" by 31" to cover the bigger bathrooms. Bonus is that they’re cheap to buy as well!