Something humorous, at least to me, is on this file related to the RBC about dress and physical readiness when on site. They reference their literature to remind workers to be well rested and to drink water. Is there any denomination on this planet that insists it's pew maintain it's lips on the tits of it's clergy class as much as the WT/JW relationship?
http://par-anoia.net/assessment/us/watchtower/JWWT_Zipped_items/04_PDF/2011-The-File.pdf
Come to work well rested and in good physical condition.- g04 2/8 pp. 3-9
Prevent dehydration. Drink plenty of water, especially during hot and humid weater.- g98 3/22 p.31