Urinal target

[1][2][3] Engineer and businessman Thomas Crapper even put a picture of a bee in the toilets his company produced, down below the water.

[2][6] In 1976 a dentist in New Jersey patented a bullseye decal he called the Tinkle Target, citing how "parents, janitors, and others responsible for this cleanliness have often despaired the human male sloppiness of failing to direct urine into the proper receptacles".

[10] Urinal design often contends with issues of cleanliness, changing their structure or adding elements like screens to avoid spilling or splashing.

[1][2] Employees of Schiphol Airport conducted trials to test how effective their etched images of flies were.

[12] According to nudge theory, positive reinforcement and indirect suggestions can influence the behavior and decision-making of groups or individuals in predictable ways, without using rigid rules.