Wolf – I think you’re right; but I’ve been in that position; the Rav is going to babble about silliness & I’ve got a daf to finish. Usually I will try to slip out.
Sacri – you’re right about Sheva Brachos or Chasunos. R’ Aharon Shecter once saw a bachur w/a mishniyos at a wedding. He said to ” What are you doing? Why aren’t you dancing?” “Rebbe, Bitul Torah!”
“Fine – IYH, remind before your chasuna, to remind everyone to bring mishniyos”