hey woody how many building do you think have been built in white mortar and have had runs splash backs from each scaffold lift and been pulled down because of mortar marks
I suppose that would depend on how many jobs
you have worked on ....... zooooooming along the line throwing compo all over the place

(this calculation would not include your usual footings and manholes though)
I know, and the guys know too, what happens to poor, unacceptable work on my jobs
And for your benefit, footingsnottidy, stains caused by saturated mortar runs, are completely different and harder to deal with than those mortar splashes at each lift (which should not occur in the first place) double