A Canadian woman is suing for financial support for two children conceived with the sperm of a man with whom she was friendly in medical school. The adults are now both physicians, and the children are now in their teens.
The man says now that he would have never donated sperm had there been an expectation of financial responsibility for the children on his part. A 2002 document indicates that the woman would not seek financial support from the man. The man has, however, over the years been involved in the children's lives, sponsored travel, contributed to a college savings fund, and introduced the children to his own parents, and referred to himself as the children's dad.
A peculiarity of Ontario law seems to allow financial suits of this kind based on the biological contribution alone, as against any stated intent.