From Jamon C:
This is a little bit like a nuclear weapon .... I have 5 active seminary students, so this works better in small environment. I had a college professor give every student a red card and if they wanted to take over the class for 20 minutes they can (as long as gospel appropriate). They only get one red card for the year. I talked about it an empowerment this is their class, all can be heard. It is their permission to hijack the class.... One student asked jokingly to test the boundaries, "can we watch cat videos on youtube?" I said "Sure, it is your 20 minutes. After that it is over." No one has used their red card so far... but whenever someone speaks or is distracting, the simple question to ask is "Do you want to use your red card now?"