THE BABA SALI ZT"L
The well known and famous story related by haRav Ovadia Yosef zt"l on the Baba Sali arouses a deep fear of HaShem YitBarach.
The story is this: A couple went to the holy Baba Sali to get a bracha. The Baba Sali thus immediately asked to the husband - why is your wife wearing a sheitel? The husband responded - because this is what people do. It's become the minchag.
In disbelief, responded the Baba Sali : Is this what people do?
He turned to the woman, warning her about the punishment that she will receive in the World to Come.
Listen to me. When you get to the next world, they will burn you. They will start to burn you from your sheitel and then they will burn you completely.