We all take ourselves too seriously sometimes. Having a sense of humor about ourselves is healthy. Even though "facetiousness" implies "inappropriateness," I think that it really allows for us all to banter about little things about human nature that we all have in common from time to time. We should recognize them and try to work through them with laughter and help from one another. Humility works wonders in these cases. Let us not take offense at everything!
The word "boring" indicates to me that one is not challenging himself or herself to engage in all of life's possibilities. If you are "bored" than challenge yourself to find one thing to engage in to improve yourself.