My eyes rolled a bit and I rubbed my forehead. I pondered on that thump because I had always believed that mantas had such good radar that they would never hit us.
Last year, I had one lay on me. That was weird. Fortunately, it kept moving forward and so it was a very short lived experience, uh, which I lived through. I am so much wiser now and have even greater respect for these beautiful creatures.
Maybe it was trying to be amorous with you.