I entered a cafe in the course of my job as a planning officer, in order to make an assessment of the lawful use to which the said premises was being put. I purchased a cup of coffee and sat down at a table to the right of the premises (as viewed from the street) so as to have a good view of the cummings and gowings. No sooner had I taken my first sip than I received an unexpected blow on the head - not from the rather comely waitress, but from a 2 metre length of solid plaster coving of 15cm by 15cm section. Fortunately I was wearing my 'cover', an authentic French beret, and this slightly cushioned the blow and more importantly prevented too much damage to the skin of my cranium, which happened to be bald at the time.
I collapsed in hysterical laughter at the Clouseau-like situation (I'd even been wearing a belted mac) and was taken by the terrified proprietor into the back room and given a new cup of coffee. I managed to splutter out why I had been there and why I was hysterical and he begged me to accept a free meal, with my wife, my family.... my friends, my cousins. I explained that I couldn't accept a gift of any nature, and managed to calm him down by reassuring him that no gift would alter my assessment of the situation.
He was running the premises in accordance with his lawful use, and there wer no bad consequemces for him.
I still bear a slight scar on the bonce, and as you can all see there was no long-term effect on my mental capacity.