Proof of a Dirty Mind?

This past Saturday, the SO (significant other) and I headed out for some quality time and yard sale perusing. After running by the farmer's market (aren't we fabulously young and hip? -- if you ignore the whole yard sale tour), our second stop was a large rummage sale at the local Catholic school.

Now, being that it was a Catholic school, you can imagine my surprise to look up and see the word "SEX" in huge red letters on the gym wall. I went to Georgetown after all; I'm familiar with how the Catholics feel about sex of the pre-marital variety and couldn't help but wonder why "no," "never" or "only if you're married" weren't posted nearby for the impressionable youth crowd.

I spent a good 30 seconds staring at the wall and wondering why, oh why, this would be what the priests and nuns chose to put there and another 30 seconds wondering why no one else was as taken aback as I was. Was a priest going to find me and reprimand me just for staring at the word?

On closer inspection, I realized that, of course, "sex" was not painted on the gym wall after all. Instead it was the initials SFX. (For Saint Francis Xavier. Thank you, Georgetown.)  No wonder no one else was as agog as I was.

Now the question that remains is this: Is it proof of a dirty mind that I immediately assumed I saw "sex" rather than some other far more mundane word or phrase? We were at a Catholic school after all. Dirty mind or not, you'd think the context clues would have helped me figure this one out. (Sorry, expensive-education Georgetown.)

I think I know what the priest would say about this one ...