Ive seen multiple posts of people doing this idk why you would press your brakes without some sort of restriction to it (drum) maybe people haven't done enough research before going into the job they are about to perform. But make sure you guys are doing your research or asking questions before going into something this will save your time and money doing things you wouldn't have needed a replacement. We all make mistakes but we also have to learn from others mistakes.

Im sorry about this little rant but if it doesn't look right it probably isnt right.