I also have male family members who I have advised to NEVER come in the house to urinate-- if you're outside, go do your business outside the chicken run, barn, or barnyard fencing. Between rains, it really seems to work, even in winter. There's almost an invisible line where they wild animals won't cross, based on tracks, scat and footprints ( when it rains, it all has to start again, of course).
You're spot on. Predators seem to know when something higher up the foodchain has marked his territory. BTW, you've got to be one of the coolest women ever to encourage "watering the lawn" as I call it!