My closest to getting caught was at a massage parlour on a snowy evening in downtown Toronto about 25 years ago. Midway into getting a hj the attendant asked if I'd mind switching attendants? I said sure. The next woman finished me, then told me the police were at the front and would I mind leaving by the back door? So I did and exited into a laneway where there was a fresh blanket of snow. So I walked leaving perfect tracks to the next street. The evidence was certainly clear, but no one came around. So off I went.