As a registered psychologist who works with victims of child abuse, it common for survivors of abuse to develop strong adverse reactions when placed in situations that are similar to what occurred in the abuse. For example, a child regularly locked in a closet will develop a fear of closed in spaces. However, there are many examples that are less obvious and more subtle; a certain smell can trigger a panic response in some survivors of abuse and they may not even remember at first why that smell is eliciting that response.
Therefore, what is weird/rare about that photo to me - is that a person who had suffered childhood trauma by specifically being zipped into a suitcase (a memory strong enough to mention and write about as the specific abuse they suffered) would find it funny and enjoyable to recreate that experience. It is of course possible the situation left no lasting effect on him, but then it is strange that he specifically talks about it.
Thanks for this expert insight.[/quote]
I thought the same thing but I am not a psychologist.