I saw the grossest thing today --- a teenager (guy) with a cold (coughing) and then reaching in to the bagels with his HANDS and not using the TONGS provided.
I may be rethinking about shopping at these self-serve options .... you never know who touched the bagels last. They have tons of tongs there for people to use, and yet there is always someone who needs to put their hands in the stuff ... based on today's experience, I am downgrading them to a three star.