Nah.
We're much more subtle than that..
For our own entertainment we converse in secret and agree on a date, then we gang up on all the newbies out of the blue on said date.
Poor bastards never know what hit them, and it sorts the wheat from the chaff quite nicely.
Of course we would never hint, let alone admit, that we do this otherwise the surprise would be lost.
Wait a minute.. your not one of the new guys are you?