I'm getting the following error thrown inside when trying to run sspinc/readability (which uses Harmony and Johnson) from inside Rails: "Johnson is not thread safe" Readability works on the first call to it, but subsequent calls to the same application throw that error. If I restart Mongrel and try again, it works once, but not after that. AFAIK, Rails shouldn't be threading, so I'm a bit confused as to what's going on here. Any suggestions? Thanks a lot, Tom