BS”D
I was in a very divided community once and a choir was singing Shma – all of a sudden an askan from the other side popped in and the choirmaster began to sing “you’ll soon feel pain and I’ll rejoice, so hear my cry of Shygetz Aroys!”
I cannot describe what happened afterward except to say that if you believe this, well, I have a bridge to sell you that goes all the way from Vilyemsburg to Monroe in time for Shabbos.