Found a comment, gonna paste it.
OMFG That was funny the way you had them crapping their pants thinking they were gonna die!
Hey, I got an idea, you should do this prank at a high school and see how many responses you get!
That end result tape is gonna be even funnier. (watching them wheel you away to prison for life while your crying "It's a prank, It's a prank!" either that or watching them drop dirt on your casket you idiot!)