there's nothing better than fresh urine as a curiosity scent. Animals love to smell urine. does'nt matter where the stuff came from.
I pee'd in a buddy's scrape dripper once. ( he was moving in on my spot) but was dissapointed to find out from him that deer and buck sightings were good from that spot afterwards. Since then I'f I have to go while hunting I make a scrape and pee in it. never had an ill effect.