Note that Im talking societal inhibitions aside. Do you piss in the shower for the hell of it? Maybe you enjoy those big ass troughs at stadiums? What is the optimal experience?
Peeing outdoors is the closest were gonna get to reject humanity return to monkey, so enjoy it while theres still outside to piss in.
Yeah outside is optimal. However, if you camp or hike in an area with mountain goats do NOT piss right next to the trail or campsite. The goats crave the salt and they will seek out the piss. Which can get them too close/comfortable with humans and leads to unfortunate human/goat confrontations
Goat facts I didn't know I needed to know
This is the case for deer as well.
A guideline is to piss on a rock, not on a tree, because the deer will gnaw off the salty tree bark.