Freidian slip? What I said at work

I clearly remember a verbal Faux pas I made back in 1975. I had been up all night getting a car painted because one of my hired help didn't show. About 9:00 in the morning a 1972 maroon and white Olds 442 convertible pulls up out front and an attractive gal comes into the shop and wants to know if I have time to fix the roof of her car because it won't go all the way back. I promptly stepped around the counter and said, "Well, let's go pop your top so I can have a look." Her response was. " I most definitely will not!" It took me a while to realize what I had said and then I began to apologize and explain that I meant her "roof". It wasn't too long before we were both laughing about it. I filled her convertible pump with fluid and she said it worked better than the day she bought it. She sent me several referrals so she didn't stay too upset, but I sure remember the incident and try to be a bit more thoughtful even when exhausted!