During daycare hours; I try to keep my door locked.
A) safety of the kids. This way I know some axe murderer isn't barging in.
B) if parents just came right in, you know that inevitably, they are opening the door at the exact moment all hell breaks loose. Murphy's law! Johnny is going to smack Suzie, Sally is going to spill a cup of water all down her front, your phone is going to ring, and the dog will start to bark uncontrollably. That's just how it goes, and even though the provider is in total control of this barely organized chaos- I hate that look on parent's faces. "What the bleep is going on over here?"
LoL