Oh yeah quite a bit i'd have to say. But, urine is basically just distilled water so you wouldn't have anything to worry about....especially since it was your urine as well.
We're good today thanks. I just watched the President's plane(Air Force One) come in for a landing at the airport down the road from here. Thats makes it the third time i've seen it fly over work here. So how are you doing today? How's your mum and Con?