Obviously all of you guys are from way up the top end of the world. In brazil the horizon slopes about 40 deg, so only a 45 deg bank....
Down under the horizon is 90 deg out, so we are fine whatever we do.
Don't think that it only happens in third world countries. I know of a few supposedly first world operators who give the same sort of rides. But, do you go to Brazil and expect the same level of safety in anything as at home?
Ps professional just means you get paid for it, doesn't it? Not that you have to be any good. Although being good probably helps.