Is it possible 2nd batch of HMs knew Michael was the puppet?
 

The first lot went in on the Thursday night where it was announced to the public that Michael was working for the public. I can't believe that the second batch of HMs (or some of them) going in on the Friday night didn't know this, it is so easy to communicate on the sly. Dan was very quick off the mark (without really knowing Michael) and seems to know a bit too much whilst getting credits for revealing the BB Secret. Even Gina mentioned something in the DR of her suspicions. I know that if I was going into the house on a night after others had already entered I would try to find out who was in there etc.