how to politely tell a customer to not come on certain days
he is a really nice older gentleman who comes in a will sell us his old antiques. the only problem is he is kinda sketchy lookin. and he use to be a "druggy". now I like the guy don't get me wrong but we think he might be chasing off customers. how do I let him know this or just a nice way to say pls only come on these days if your going to sell us something. we own a shabby chic shop and turn old furniture into new lookin treasures.