Scattering one's seed

There's a message for us men hiding somewhere in this pile of horse manure. I just can't figure out what it is:

A Nassau County man who said he donated sperm to a female co-worker as a friendly gesture - and then sent presents and cards to the child over the years - is legally considered the father and may have to pay child support for the college-bound teenager, according to a judge's ruling.

"What's the saying? No good deed goes unpunished," said Deborah Kelly, a Garden City lawyer for the man, who acknowledged that he is named as the father on the child's birth certificate.