I stalked into some deer the other night. Wind up my arse. Fortunately my clothes had been doused in sheep **** and wet grass for the previous few outings. The dog however, despite accompanying me on each outing, probably cleans herself overnight and does get to laze about in luxury day/evenings. The deer never flinched, I was quite surprised.
Ive always understood there is nothing you can do about human smell. No washing, washing, sheep ****, anything, the deer will smell something is up if the wind is flowing from you to them. But sometimes wind can do weird things - it can seem like its heading away from you in one direction but it then does something else, you can get turbulence around crags or it heads along valleys.