All work and no play can make a TV show set a dull place! So, to add some fun, actor Vatsal Sheth decided to pull a fast one on Sanjeeda Sheikh on the set of "Ek Hasina Thi" recently. While shooting in the wee hours of the morning recently, Vatsal insisted he was seeing strange things and hearing weird sounds in his vanity van and that he also saw asymmetrical shadows on the balcony among other stuff. Having set the mood for a scare, he devised an 'evil' plan to scare his co-star and other oblivious people on the set. A source said that Vatsal asked a member to get a few lemons and injected a few with fake blood and concealed it. He then told them stories about after life and lured them into playing a performing a small puja on lemons, through which one can find out if he or she is haunted or not. "If the lemon changes the colour, that means you are haunted," Vatsal told his colleagues on the set, shared the source. Sanjeeda looked uncomfortable, but still joined others in the game. After the puja was performed, they went out of the set to the ground. When they began cutting the lemons, Sanjeeda and a set member were the ones to find 'blood' in their lemons. She screamed, and upon realising that it was a prank, she said: "I`ll kill you Sheth, try haunting me then!"