Nature of the beast.  Don't want any leaks anywhere.  And wear ppe. If contact occurs, rub vitamin E on exposed skin.  We keep a several oz container in the cab.  Used it for first time last year.  We were satisfied with how it worked.  Had a bit of root mohawking from lack of rain to spread the chemical, but seemed to be more active than the dry products in this area.  That being said I really don't like any chemicals.