There's always the "feeling depressed" approach. For some odd reason, lots of JWs end up depressed, so that will sound like a viable excuse.
We had a problem with depression in our congregation about 6 years ago. My father (the service overseer) brought this up during a Watchtower Study. He plainly stated that we wouldn't have so many depressed people if they would just read their Watchtower and Awake magazines more. Silly people out spending money on therapy, all they need is a Watchtower Magazine!