Nothing like narrowly averting disaster with a professional wildlife paper, when the spellchecker, looking over my habitat suitability model for the golden eagle in my Wildlife Management class, tried to redefine the golden eagle's holoarctic geographic range (meaning circumpolar, although North America has just one subspecies) as "homoerotic."
"Geographic Extent: The golden eagle (Aquila chrysaetos) is a homoerotic species found in North America, Asia, and Europe."
I think that's the most flagrant spellcheck error I've yet to encounter.
God, my professor would have had a field day with it. It's bad enough when students turn in papers without capitalization or punctuation, but this...