I get this all the time. On the dashboard of my dad's car it says SRS. I see acronyms like FTM, STP, (A guy at my school has a shirt that says STP, and I crack up whenever I see it) etc.
And also, when someone says "binder", I never think about school supplies. When I hear something about packing, the image in my head is not of suitcases.
Anyone else got weird acronyms to share, or am I the only crazy one who makes these kind of associations? -_-'