Guru Gobind Singh and Tobacco

Guru Gobind Singh jee and his fauj were walking to anandpur. Guru jee was on his horse. they suddenly halted infront of a field on the journey home and they all stopped a few moments later Guru ji took the fauj back and told them they were to go another route home. on the route one of the soliders ask guru ji " Guru ji why are we going the long way when we could have just walked through the field that we halted at and we would have reached our destination". Guru ji replied " that field was a tobacco field and it was not me that halted my horse did. it refused to walk through such an unclean place" so if my horse is not willing to enter the place of tobacco then niether should my Sikhs enter or be surrounded by such pollution" every action of our guru JEE was done for a reason. truly they were the bright light in this kalijug