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Carl Rennie Davis of Stourbridge has another reason for men to waste more
time in bars: a peeing contest built into the urinals. A vertical row of lamps
is controlled by a paddle wheel hidden in the waste pipe (GB 2351453). The
longer someone pees past the wheel, the more lamps light up. The electronics for
a row of urinals can be linked so that rivals can compete for the longest,
strongest pee. The wheel is fitted with optical speed sensors, and the circuitry
works on a safe low-voltage supply. Extra display boards can be mounted in the
bar, so women friends can join in the fun—should they feel so inclined.