Or piss on it (human urine has lots of nitrogen, potassium and phosphorus in it, which is very beneficial).
Bob Flowerdew would approve
@rhowe started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Or piss on it (human urine has lots of nitrogen, potassium and phosphorus in it, which is very beneficial).