Vidya Balan, who will be seen in a role of a female detective in her upcoming film `Bobby Jasoos,` said dressing up like a man as a disguise was an exciting experience. The trailer of `Bobby Jasoos` was launched in the presence of her parents and real-life detectives, mostly women. The National Award winning actress has done detective act but only for fun. Vidya said: `I did `Jasoosi` in real life for fun and have never been caught. There is no need for me to do `Jasoosi` on Siddharth (Siddharth Roy Kapur, her husband) He is a boring guy.`