The worst part about blocks or suppression is that they just walk away whilst when u are trying to get out a word.....The Freezing part is what that makes me vent always.....i come to a point where I just I talk 2 or 3 seconds before hand so that I time my stutter....That's what I do.... Whilst u are approaching some guy.....start talking before hand and it might help.... But if he says 'what' Ur dead.....