You and 7 random PotD posters are locked in 8 adjacent cells

Poll of the Day

Yellow posted...
You have the only button, and if you push it all other posters die.

At the end of 3 minutes everyone is released regardless and gets a bucket of ice cream to share.

Do we know these rules going in? Because if so, that's not a dilemma.
Unless the others want a crappy flavour of ice cream I guess...
Mod me? You don't even know me!