A joke from which you can earn a heart attack

Some pranksters cannot live without pranks. But there must be some kind of limit in every prank, because such humor can cause a person to have a heart attack from fear. So, for example, one joker from Mexico decided to play a prank on his mother. He built a giant spider and stuck it on the wall. The spectacle in itself is absolutely terrifying, but the wit did not stop there...