Code:
on *:disconnect: {
 if ($isfile(file.txt)){ write -c file.txt }
}

This will clear the file for you when you disconnect. Or you can use it when you connect.
Code:
on *:connect: {
 if ($isfile(file.txt)){ write -c file.txt }
}

Now you dont need to delete the file every time you disconnect from the server.

if ($me != tired) { return } | else { echo -a Get a pot of coffee now $+($me,.) }