hi, Weedie ... our zoo, like most, I imagine, has a trough ringing the concrete pad, where the stuff trickles to ... as far as human urine, to repel deer, that doesn't work either ... deer were a nightly disaster for my tomato plants, I whizzed around them several times a day, all summer long (I'd have pissed on the deer, too, if they'd hold still ) ... the deer treated it as 'salad dressing', I guess ... I tried all sorts of things, urine, bars of Irish Spring soap, garlic, red pepper, the damned things ignored everything ... the only thing I didn't try, my local garden radio show advertises 2 products: 'Deer-Scram, and Rabbit-Scram', never got around to trying them ...