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Well, I wonder, have you thought this through?

There must be times when all of the above have spat on the street, first time out from a cold or flu, we can't help it, it's perfectly natural.

When I have to do it I always aim for a grid.

God help us all, how far can we go before all natural and needed bodily functions become illegal?

I fart, you fart, how long before that is illegal in publc?

Yes, I agree spitting to try and appear tough is wrong, but there are times we all need, (desperatly), to remove flem.