"You just got hit with what I call the 'Baptist surprise'."

“The ‘Baptist surprise’ is a simple strategy. Get your new convert to walk the aisle with you. Have his name read from the pulpit with him standing in front of God and everybody, and then tell him he needs to get baptized. Don’t ask. Don’t explain (and if you must explain, then do so very quickly!). He can learn all that theological stuff later. Just get him in the water!”
More here.