^^^ yup hes right....basically though dude, if youre going substitution method, buy one of the powder pees online...theyre like 15 bucks and about the size of three pill capsules, all you need is warm water or cold water and heat pads (which most of the sites sell with the fake pee) its so much better than freezing, thawing, and having to have actual urine in your pocket or whatever and risk the stink