I turned quickly around today at work to grab some tea. My hand hit the metal counter. As it did I saw the end of the table lift up, but that's impossible because it's stuck into the ground. Then within a second I shook my head and snapped back into reality. I even hit the counter again to be sure. It felt like some sort of freaky dream but it happens while I was awake. Anybody have and suggestions as to why that happened??