Actor Siddhant Karnick, who plays the Casanova vampire in Star One’s
Pyaar Kii Yeh Ek Kahaani
, is known to be a prankster on the sets. But recently when he decided to scare his co-actor, who was dressing in the adjoining room of the van, by making weird noises, he was in for a shock. That’s because the actor sat quietly in Siddhant’s room while he hid in the bathroom and spranged on him as soon as he came out.