% vandusen coucou.scm                                                                                                                   
debug: registering command authorize
debug: registering command fall-through
connecting to irc.freenode.org as (Koopain)

Error: (for-each) bad argument type - not a list: #f

        Call history:

        vandusen.scm:59: g137
        <eval>    [youbi] (whisper-to "Youbi" "hello dear Youbi")
        vandusen.scm:122: call-with-connection
        vandusen.scm:63: dynamic-wind
        vandusen.scm:65: mutex-lock!
        vandusen.scm:66: g144
        irc-helpers.scm:13: method
        vandusen.scm:68: mutex-unlock!
        vandusen.scm:78: call-with-connection
        vandusen.scm:63: dynamic-wind
        vandusen.scm:65: mutex-lock!
        vandusen.scm:66: g144
        vandusen.scm:82: $
        vandusen.scm:48: config
        vandusen.scm:43: old
        vandusen.scm:48: alist-ref              <--