I didn't disclose my SI for a couple years. When I finally did I prefaced it by saying to T "I need to tell you something but am afraid you won't want to work with me anymore". He was very reassuring and when I did tell he said he suspected. He didn't make a big deal then and still doesn't. He accepts it for what it is, a coping mechanism that hopefully can be changed. Somehow we just know when it is time to disclose.