I like the name sonic errors, Helen! My husband has one that he always does - I can't remember it offhand - he knows the right word but now he's been saying the wrong one too long...I guess it's not a big deal. But I hate to think of someone hearing him and thinking nasty thoughts, like "Boy, what an uneducated lout!" when it's really just one little ingrained mistake, and of course he's quite un-lout-y!