Funny story (God has a sense of humor):
1962
Born to Atheist Father, Methodist (Lily & Holly) Paternal Grandparents & Roman Catholic (Italian-American) Maternal Grandparents. Maternal Grandparents DEMANDED that their Grandchild be baptized (to avoid hell) and Paternal Grandparents ADAMANT that their Grandchild be raised Protestant rather than Catholic [this was the 1960's]. My Atheist Father just wanted peace and quiet in his life, so I was baptized in a Lutheran Church that I attended TWICE in my life (including the day I was baptized). So "sprinkled" and raised "atheist".
1995
I was saved by God via a supernatural encounter in 1980 outside of any organized Church. So it came to pass that I was attending a small "Church of God of Anderson Indiana" when someone from the youth went up to be baptized. I casually mentioned to a deacon that I had never actually been baptized since I was not saved in a church and that was something like 15 years ago, so it seemed sort of a 'moot' point. The pastor freaked out when he heard and sat me down to have a talk. I had no particular objection to baptism. I just figured that 15 years ago I was part of a gang and set my rivals on fire, and today I attended church and Sunday school and had a job as an Architect ... so I figured there was plenty of evidence of a transformed life. To make them happy, and because the Bible DID say to do it, I went and got immersed. I told them that I sure pitied the fish downstream that had to swim through MY SINS that were washed away.
So the way I see it, God used clueless people to mark me as an infant as someone that He would be coming back to claim later. Then Jesus came "Road to Damascus" style and snatched me out of the world. Eventually, the Holy Spirit circled back to dot all the (i)'s and cross all the (t)'s.