Hi,
to see what I'm referring to, do the following:
//timer 10 1 echo -a $read(names.txt) $read(jokes.txt)
which should show u the same message each time (remember, double // is the same as running from remote, which is the case here in your script)
//timer 10 1 echo -a $!read(names.txt) $!read(jokes.txt)
that should show u a random message each time.
Hope this made things clearer,
Greetz