For anyone that thinks forced entry never happens, it does, and we have first hand experience of this.
We moved into a new house 3 years ago and were instantly bombarded with visits from debt collectors for the previous owners, plus a tonne of mail daily - they were in serious shit. We started opening the letters to try and prevent further visits and were calling companies every day.
One was for energy and they owed £3k. Huge red warnings on the letter about immediate action pending. We called, told them they'd moved, they said they'd update records, not to worry.
They didn't. A week later we got back from a family party at midnight, went inside. Everything was different - all the hallway doors were open (we kept them shut) and all of the contents from our understairs cupboard was pulled out. DH bundled us all back outside and called the police - we thought we'd been burgled. Pissing down with rain, midnight, hysterical young dc. Police visit, the works.
That day the bailiffs had been with a locksmith, drilled open our patio doors at the back and fitted prepayment meters. Left our stuff thrown everywhere. They left a note on the kitchen counter along with our new patio door key. They'd been all over the house, every bedroom door was open - I was told this was policy, they need to physically check every room in the house for people before they start work.
Not only do they fit prepayment meters, they cap off your gas supply for safety and its your responsibility to pay a gas engineer to uncap it - they helpfully advised that in the note they left. We had no heating for 5 days in November until we could get someone out and pay £130 to get the gas uncapped.
Anyway, it cost them a pretty penny in the long run in compensation, for their monumental fuck up (they updated their records that the debt owners had moved but made no attempt to inform the court and action was already instructed).
But it's not some urban myth, it most definitely DOES happen. If you're there and refuse entry, they call the police. If you're not there, in they go with a locksmith.