From what I've read urine is extremely high in nitrogen, phosphorus and potassium. Sounds a lot like fertilizer. It is so strong in fact, that you need to dilute it 8:1 or 10:1 with water. No pissing directly on the plants, just do it in the watering can

. I suggest telling the wife, but you may life more on the edge than I. Also it need to be used within 24 hours or it starts to break down into ammonia.