In the context of your inquiry, assuming that the Board of Trustees and/or the Mayor as presiding officer permit those who wish to speak to do so for a particular period of time, each person who wishes to do so must, in my opinion, be given an equal opportunity to do so.  Similarly, if the Board and/or Mayor permit positive comments concerning the operation of Village government, I believe that they must offer an equal opportunity to enable those in attendance to offer negative or critical comments.