[Scoundreller]

You don’t want to breathe in cement dust.

[guiriduro]

But you don't want to breathe flouric acid more than you don't want to breathe cement dust, I'd wager.

[techdragon]

Pretty easy choice if you ask me... Id rather do the cinnamon challenge with a spoon of cement mix than breathe in the acid...

[ChoGGi]

I've breathed in cement dust and HF. I'd choose cement anytime.