I know - strange.
I know prostitution has moved to the internet so it can be somewhat safer (video chats beforehand, digital log of messages, location etc) but I reckon he is still exposed to a level of risk and violence so I wonder if it is related to that.
Unfortunately, we live in a society that if you look or act different it can put you at risk from harm and Cameron is walking around with designer luggage and gear on, not to mention the way he looks I think it increases the risk of public violence/harassment.