Most often, the short-term incontinence that men experience after prostate cancer surgery involves slight dripping or leaking, particularly during strenuous activity. Sometimes even a cough, sneeze, or laugh can trigger unwanted bladder emptying.
So, at time of writing, we see prices for Rhenium at $11,000 per kg Re contained for catalyst Ammonium Perrhenate and for Rhenium metal pellets Re 99.9% used for nickel alloy additions, $12,000-12,500 per kg.
The price for plutonium-239 quoted on p. 155, US$5.24 per milligram, seems to imply that the plutonium for a critical mass of about 6 kg costs about 31 million dollars.. $5240. per gram.