The hotel has a fruit knife.

If the guest is really injured, don't worry too much.

A towel can be washed off as long as the blood is fresh.

In addition, find a band-aid for the guest, apologize to the guest and tell the guest to pay attention next time.

To tell the truth, the fruit knife in the hotel is very dull. Since the guest puts it this way, it means that he is finding fault, so generally don't take it too seriously.