The unexpected behavior often makes it funny. For example, if a patient shows up wearing a really outlandish costume, not for any special reason but just because they felt like it. It can catch the psychologist off - guard and create a humorous moment.
Well, maybe it's the strange art on the walls. You know, those abstract paintings that seem to have a mind of their own. Or perhaps it's the waiting room full of old, creaky chairs that make funny noises when you sit in them.
Well, there was an incident where a little kid was brought to the psychologist's office. The kid was so fascinated by the fidget toys in the room that they started creating their own little 'toy world' and told the psychologist all about it, turning the session into a really creative and fun storytelling time instead of a typical therapy session.
I heard of a psychologist's office where the heating system was always on the fritz. So during the winter, everyone would be sitting there bundled up in coats and blankets. The psychologist would joke about how it was a great way to build character while still trying to have a serious session. It was a funny situation that made the whole experience kind of humorous.
The humor might come from the way the story is told. If it has a lot of vivid descriptions of funny expressions or sounds. Like in a story where a parrot imitates a person's sneeze in a very exaggerated way. It makes the story more engaging and funny.
The unexpected twists usually make it funny. For example, if a character is supposed to be very serious all the time but suddenly does something completely silly like dancing in the rain without any reason. That kind of deviation from the norm can be a great source of humor.
A story can be 'kind of funny' when there is an unexpected twist. For example, if you expect someone to be really good at something but they end up being completely hopeless at it. Like a professional athlete who can't ride a bike.