Today it decided to close up when I was standing at the back, three times. I had loaded a lot of set top boxes and sat equipment with cables one toward the catch lock. It just kept closing by itself without the foot underneath. Beep, beep, beep. Moral behind this don't turn off the warning with Obdeleven etc if you don't want to be hit on your head. Having been down the tip it was fine. Think it was all the metal playing havoc with the sensor underneath or the stray cable coming forward towards the catch.