Learn to laugh at anything
Just do it.
Grace Hopper was the first woman ever to become an admiral in the US navy. When asked about her success she said, "If I think something needs to be done, I do it. It's a lot easier to apologise later than to get permission."
Because some people are idiots. In the United States, we have so oversexualized breasts that it seems the majority of people forget what they're for in the first place.
I especially hate when people suggest the woman go into the bathroom. Would YOU want to eat your lunch in a public restroom?