One incident involved a tenants son who wanted to pay me through the agent for a years rent.

The agent was going to take this by credit card (with all the associated fees and issues), but then realised any amount above £15K in the UK required money laundering checks and would incur costs.

The son was based in Dubai and this caused problems. I asked the tenant if his son was a Bitcoiner (being based in Dubai, I thought he might be), which he was, so I gave the tenant a wallet address and his son is going to send me BTC.

The second incident involves a business and confidentially prevents me disclosing this interaction.