Baptizing Jews you say!!! *Gasp*

I never thought about this before till I recently heard it. Jewish people don't get baptized. The only time a baptism occurs in Judaism is when a gentile converts. So what was John the Baptist doing? Is there anything more subversive than showing up to the people of Israel and Jerusalem and say "Repent and be baptized" - This would be similar to walking into a Church or christian community and telling everyone that they are sinners and we need to get saved. I'm sure that would cause quite a reaction. And then the level of conviction of what he was saying and the way that God was moving through the people must have been so great, because you know what? It was working. Why else would the Pharisees be there? Cause they were pissed! John was telling them they were hacks. Their religion did not cut it and they, and their followers, were nothing more than gentile "dogs".

Not sure what to make of this, I'm going to let it percolate for a while before I form an opinion, but I just thought I would throw it out there.