I'm forking this from bug 10408. The word "hits" tends to produce unfortunate CAPTCHAs whenever it gets appended to a plural word. While we discuss the reasonability of adding a blacklist regexp for naughty words at the original bug, in the mean time it would be reasonable to simply remove the offending word from Wikimedia's word list.
Version: unspecified
Severity: minor
URL: http://en.wikipedia.org/wiki/Image:Peashits.png