The long black thing

My son, just a few minutes ago, was walking out of his room to go to the bathroom and he seen something long and black outside of his door. He figured it was a toy and nudged it to move it out of the way. He said it leaped at his foot and when he looked back it was gone. Also he said it felt like something leather on bare skin. We looked to see what it could have been or to see if it was some kind of animal and we found nothing.