Watch what you say

I had to give a speech today and i thought i was a lesson everyone should know:

Snow, a simple concept in the English language that many people understand. Yet, for my family and I, snow means something entirely different. My older sister felt very uncomfortable saying the word "sex" in front of my parents. My parents wanted my sisters and I to be properly informed about sex and not hear the wrong information from the wrong source therefor, the topic of sex came up frequently at the dinner table. Since my sister, Erika, was uncomfortable with saying that word, she made up a code word for sex: snow.
This was a funny joke around my house. My parents would give us warnings like, "Don't get caught up in a blizzard now!" or " It better not be snowing when i come back to this house!" when we had our significant others over.
Well, one night my currently ex-girlfriend and I came to the house to watch a movie, Eight Below, with the family. My mother asked, "There is no snow in this movie is there Jeremy?" referring to sexual content. My girlfriend immediately responded, "Of course! There is tones of snow." (in the movie Eight Below, it takes place in Alaska, there is allot of actual snow)
My mother went completely insane. Saying remarks like, " How dare you bring that content into this house!" and such. My family was laughing really hard since they saw the misinterpretation. I had to quickly inform her of her error. After that, i learned to make sure I informed anyone coming into my house about the new "code word" to avoid any misinterpretations.