Unmeet – Warns you before you join a call with only one other person

If everyone used this extension, the call would never begin as everyone is waiting for everyone else to join before them.

AKA the "Dining philosophers problem" (or "the dwarven berserker problem"):

https://en.wikipedia.org/wiki/Dining_philosophers_problem

After contemplating the nature of 1-1 meetings in startups for a while, I've wondered whether it'd make sense -- ideally -- to always have a third person in the (room / cafe / bar / hospital / bedside / cockpit / decision panel). It'd require emotional maturity and perhaps an element of vulnerability. Neat extension idea anyway, thanks for sharing.