He later founded and served as clinical director of the Counselling and Care Centre, Singapore's first counselling centre; he also helped to establish a suicide prevention agency, Samaritans of Singapore (SOS).
[citation needed] Yeo was a regular contributor to The Straits Times, including as an advice columnist.
[citation needed] He admitted that at one point of his life, he flunked his exams so regularly that he was dropped from three primary schools, and even failed his O-levels twice.
[4] On 21 November 2009, a special posthumous recognition award was given to Yeo by the National Volunteer and Philanthropy Centre (NVPC).
The award, nominated by Christine Wong, executive director of Samaritans of Singapore, honoured Yeo's lifetime of voluntarism since 1972, serving in various positions in the social work fraternity and eventually as the first Asian director of the non-profit Counselling and Care Centre.