Selling houses with past tenants items still inside

Have you ever sold a house that bar previous tenant property? I have only once and it was because the previous tenant never got their items. I gave them multiple changes to get their stuff. I couldn't wait much longer and couldn't remove the items in time. I told the new buyer I would remove the items before he moved in, but he said it's no bother and he'll go through all the stuff himself. I think he just wanted to get the house and the stuff. So it worked out for me.