What are some signs that a therapist may have poor boundaries with their clients?

Serious disappointment when the client cancels a session.

Off the top of my ancient head:

Obsessing about clients outside of work hours.

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Frequent phoning or texting of clients to “check up on them and make sure they’re OK.”

Eager anticipation (or anxious anticipation) of the next session in ways that distract.

These items can happen fleetingly, briefly, in any therapy, but if they’re frequent, it’s definitely time for the therapist to get some good, solid supervision/consultation.

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Routinely going over the time limit with certain patients, compromising the time for the next client.

Session-expressed curiosities about client details not relevant to the therapy.

Sense of competition with persons who are important in the client’s life.

What do you think of the 2 female 18 and 19 year-old German tourists, detained in Honolulu, strip-searched, put in green jumpsuits, placed in a holding cell and the next day deported, for the terrible crime of not pre-booking a hotel for their trip?

Struggling with fantasies of deeper connections with clients, whether sexual or parental or other intense or intimate relationships beyond psychotherapy.

General Introduction to Boundaries from Panahi Counseling:

Failing to mention the client in supervision/consultation, out of fear the supervisor/consultant will advise return to ordinary healthy boundaries.

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Disclosing feelings, fantasies, and experiences to the client in ways not related to the work the client is engaged in.