I still don’t get it… Do you mean an arking device like an aluminium umbrella or similar? How did OP hid something like that under his seat/desk? And how effective would it be in such a place…

Yes, exactly, but not by “destroying” or whatever you meant by that but by educating people. Also, just to be very clear about what I mean: fuck religion!

I would be humming John Lennon’s imagine and hope people would recognize it at some point and look up the lyrics in their native language.

Call them by their shameful name: dumb people