Trust me, they hate having to ask about your day as much as you hate them asking. One of my friends is my bank teller. She's always relieved when I come through because she can drop the facade and not have to pretend to care about my day.
Just one or two. That way you can use them. It's easier. It's a win win for both parties. You don't get to be pestered too much with false friendliness/sales and they don't have to worry about pissing you off by treating you normally.
And it turned out that my banker was pretty awesome.
Tell them to shut up because you just want to get your deposit in and get on with your life. Also tell them that you don't care about their stupid questions. and that you have a busy life and you don't want to waist it on pointless stuff. If the manager comes by he'll feel bad after hearing those comments.