something to hide?

Someone power washing the steps at the fountains.
Doing a good job, you don't notice how dirty they get.
Salt spray, bird shit poo, unspeakable dog exudates.
Looks interesting, may even be worth a Blip.
Took two shots and ambled off.
Twenty seconds later:
Hello!  Why do you keep taking photographs of my staff?
Keep? This makes twice, ever.
It looked interesting, said I
Are you Health & Safety? he asked
He said the staff member was 17
Perhaps he is hiding something...
Like an unsupervised child operating petrol driven power tools...
Perhaps I should have responded:
"Health and Safety? What, you mean like 
The Health and Safety at Work etc. Act 1974,
The Control of Substances Hazardous to Health Regulations 2002
The Pressure Systems Safety Regulations 2000
The Personal Protective Equipment Regulations 2002
Probably not..."

outdoors