This one creeps me out, my friend would always tell it to me (FAKE) :
A young girl named Lisa was left alone on several accounts as her parents worked late. Her parents bought her a dog to keep her company. Every night Lisa would stick her hand under the bed before going to sleep so her dog could lick it and let her know he was there. One night Lisa was awoken by a constant dripping sound. She got up and went to the kitchen to turn off the tap properly. As she was getting back into the bed she stuck her hand under the bed and the dog licked it. The dripping sound continued, so she went to the bathroom and turned off the tap properly in there, too. She went back to her bedroom and stuck her hand under the bed, and the dog licked it again. But the dripping continued, so she went outside and turned off the taps out there. She came back to bed, stuck her hand under it, and the dog licked it again. The dripping continued, drip, drip, drip. This time she listened and located the source of the dripping it was coming from her closet. She opened the closet door, and there was her dog hanging upside down with its neck cut, and written on the her mirror on the inside of the closet in blood was, "HUMANS CAN LICK TOO!!!"