We've heard here a lot of stories about Bitcoin acceptance as a payment on their place and I hope they understand how volatile Bitcoin is to know possible risks on the price. Glad to hear a story like this, it will help the community of Bitcoin go strong and give awareness to the people in your place. But one thing just to make sure, understand how Bitcoin works because it's very crucial in your business, all transactions are irreversible, once you've hit the send button and have at least 3 confirmations on the network, you can't undo it.
However, it always has an advantage if we've knowledgable about it, I suggest you study it.
Good luck with your business.
More than likely, he already knew the risks involved when it comes to crypto market. As he might have seen the up and down movements, he knows what he's getting into. Because he can always convert it to fiat upon receipt of crypto payment to avoid possible losses. Or he can wait, and exchange it when bitcoin is high. So exploring the crypto payment may give him benefits and it is up to him how he will prevent losses.