Certainly the community I fellowship with regularly, with our lively celebrations, would DEFINITELY NOT be allowed near ANY Ecclesiastical Council :) Especially on Feast days!
From Appendix III: On the Forms Observed in the Celebration of Councils (CAPS emphasis are mine):
"amongst other things, it was enacted, that any one DISTURBING the synod by NOISE, or QUARRELLING, or LAUGHTER, should be quietly removed, and placed for three days under sentence of EXCOMMUNICATION. "
(Landon, E. H. 1909. Vol. 2: A Manual of Councils of the Holy Catholic Church)