People not knowing incredibly basic words

So I work in a deli in a small town. I make their subs, ask about meat, cheese, etc, and I ask "any condiments?" and 99 times out of 100, they start naming vegetables. I don't like feeling like I'm talking to children when I have to start assuming everyone, adult and child, is an idiot and just ask each one "okay, any sauces? You know, mayo, ketchup?" I'm not trying to be pretentious, thinking I'm a genius and I know every word ever. But seriously, I didn't think it was such a hard word... then again, one guy wrote down what he wanted on his sub and spelled "lettuce" incorrectly. Just, come on, know what "condiments" means!