What would you do if you woke UP from your Funeral like you were in your Coffin Would you get a Heart attack?

This Happened to a Russian Lady woke UP from her Funeral and had a Heart Attack and Died for REALS, Honestly I don't think I'd have a Heart Attack I'd be Happy that I woke UP! don't get me wrong I would be SCARED but I would be MORE HAPPY that I was Alive =P