Yes from touching the plants you can. The trichomes rub off on your skin and sometime you even rub your eyes. When you harvest and trim you hands get covered in resin. Rub it off and save it that is finger hash. The residue from the scissors is prime hash Very potent stuff! You can wear latex gloves if it bothers you and eye ware to keep it out of your eyes too. I still fell it my self, everyone does when they trim. Itâ??s pure THC.