"Did you fake a corpse? And by the way, you stole some unlucky passerby's flashlight collection?"
"I'm not the one who should be lying in the coffin, I'm a living person. I just passed by by accident."
"Is it that easy for you to pass by a place like a tomb by accident?"
"It was very difficult for me to pass by."
There really are fake corpses, but it's not the one that's alive and kicking in the tomb, but the one that secretly follows someone home and dies until it crumbs.