Depends on the personalities of the T and client involved. My T and I have started to tease each other about certain things. I generally don't take well to teasing due to bullying in my teenage years, but I am learning in my relationships with T, H, and friends that it is okay because these people love me and mean me no harm.

I am hesitant to tease on the forum sometimes simply because of the variety of personalities and the written word does not contain the nuances of facial expression and body language inherent in teasing.