gvwilson, 
One of the most useful things I've ever found on the web comes from NOAA, and is about dealing with disruptive behaviors in meetings: https://coast.noaa.gov/ddb/ I've cached the PDF at https://drive.google.com/file/d/1DgQmgHWWdRXdHv28zR5_4B84qUTwus1d/view?usp=sharing if you want to post a framed copy on the wall in your office…
