You've nothing to fear from me, ak_! The way I mangle (and confuse) French and Korean is pretty awe inspiring (and that's after 13 years of public school - in the NA sense of public school - French and living in Korea for 4 years). By confuse I mean that when I try to speak French, Korean comes tumbling out and when I try to speak Korean, French comes tumbling out. But I'm an ace in English, really. OK, you'll just have to take my word for it.
Actually, what is awe inspiring is how well many non-native English speakers communicate in English and how pitifully the vast bulk of native English speakers are able to communicate in anything other than their mother tongue.
EDIT: removed grand mal seizure inducing attempt to illustrate the stereotypical native English speaker attempting to communicate in a different language...