I was going to buy a Motorhome from a Dealer and after viewing left a £1,000 deposit on a £30,000 van on the understanding that a list of work agreed was carried out as part of the sale.
Deal didn't work out due to delays in getting parts and staff to do the work (this was in 2020 when Covid was still impacting businesses a fair bit) and so I requested Deposit returned and got it back next day. All very amicable and agreeable for both parties.
Bought another motorhome around a month later and paid no deposit, just shook hands after viewing
(also did no inspection!)