Indeed, complacency kills. But I think most of the "dropped by belayer" incidents are caused by belayers who were taught improper technique, or never taught at

Indeed, complacency kills. But I think most of the "dropped by belayer" incidents are caused by belayers who were taught improper technique, or never taught at all. I've seen lots of youtube "how to belay" videos that involve switching hands and other dangerous practices which involve taking the brake hand off. Just slip slap slide, people.