I made the mistake of having my brakes done in Korea the day before Chu-sok holidays began. Half of one brake shoe came unbolted and the shoe flipped around. I had to use my parking brake to stop through half the city of Seoul.
Being a mechanic has saved me a lot of worries and money. I do the brakes and a lot of other things on our vehicles. I quit changing oil, since I had trouble finding a station that would take the used oil.