Doing a job at the Men's Shed today that really needed two electric stapling guns but we only had one. Then the Treasurer turned up, fresh from a visit to a tool manufacturer. He had another identical staple gun which was a refurbished unit that someone else had bought then returned for a refund because it was unsuitable.
The manufacturer can't sell that on as a new machine, so it's sent off & tested then donated to a deserving community group such as a Men's Shed. The manufacturer gets certain tax credits in this process.
So it's win, win, win. First a customer needs a tool for a once-off job, so he buys one, then returns for a full refund it after the job is finished, claiming the unit is somehow "faulty."
Then a Men's Shed get a few free virtually new power tools. And finally, the manufacturer gets a tax credit for offloading the item(s) to a Men's Shed.