Actually somehow I didn't cop that you meant "gum". I just thought it was just a really silly question, like an extreme version of, maybe… the following:
There are some problems with bottled water though. For example I don't think how they store it in a plastic bottle itself is good. I understand your point though.
Talk it out, but sometimes I'm too afraid to do that since I fear that the other person might not believe me and that it would make the situation worse for both of us.
I too prefer bottled water these days, it definitely has better filter than tap, who knows what kind of bacteria is in tap?
Talk it out, and the sooner the better. Better to try and explain your point of view (even if the person doesn't believe you) rather than doing nothing.
I live in a town, since the city is a bit too crowded for me.