We don't have deer in our desert, but the past few years we've obtained citrus-grabbing squirrels......so I go pee at the base of the trees.
It really ticks off wifey and the local patrol cops, but they live with it.
(They're front yard trees, and I haven't quite gotten around to walling the property yet.....)
Tree rats are just as bad. I kill everyone I can get my sites on.