LOL. Happened with me too when I was waiting for then TEN-TPJ ICE Express at Madurai. The Jallikattu protests were going at Madurai. Meanwhile, protestors saw an incoming train at Madurai from DG side & sat infront of it while luckily they cleared the tracks for my train. My train arrived smoothly and the protestors were furious as that train they thought to have blocked was actually terminated at MDU only.