NHS Fuckwittery

After yesterday's dental treatment, I returned to reception and proferred my debit card as usual.

"Sign here" said the receptionist, brandishing an A5 pale blue/dark blue form bearing the 'NHS' logo.

"Why?" asked I. "I'm paying for my treatment, not asking for a freebie"

"It's a form to say that you are paying the charges and are not entitled to free treatment"

"Yes, but that is blindingly obvious, that's why I'm giving you my debit card. What is the point?"

"We have no idea what the point is" summarised the receptionist "but sign and date on the front and again on the back, please. It's for their computer"