Cmon man,get real,whoever told you that was a complete idiot,i wish i knew him because i'd talk him into all kinds of stupid shit.
EDIT,on second thought that guy was right,all you gotta do is this,every time you gotta take a leak for the next week do it in a spray mist bottle,then let it sit in the sun for a week,after that pinch a loaf on a paper plate,select a few choice seeds & insert them into the brown trout you just laid,making sure to push the seed in 1 inch with your finger,set that sucker directly over your heat register & mist it 3 times a day with the fermented urine.
Now all ya gotta do is sit back & watch it grow,just like a chia pet,only stinkier.