I remember as a full grown woman (with a couple little ones myself), going over to my parents' house and walking inside. No knocking, no calling ahead, no nothing. In fact, I'm pretty sure I had my own key. Anyway, I wandered the house looking for anyone home. In the basement family room I finally found someone: my brother's friend, eating cereal and watching TV. He informed me my dad was still at work, my siblings were at various activities and my mom had run to the store. It wasn't until later that I realized how odd it was that the only two people "home" didn't actually live there. My parents had (and still have) a very open door policy. Because of that, I grew up with an appreciation of and expectation for unannounced visitors.
Really, I love drop by visitors. I mean, if you can handle a bit (or sometimes a large amount) of mess, I love to have you. (Unsure if you qualify? I've made a quiz for you to gauge your comfort level). However, the crickets that keep sneaking into our basement are not exactly welcome, nor was the family of skunks a couple years back. Last week I had another unexpected and not too pleasant visitor. I mean really, neighbors, stop on by, just make sure you're of a HUMAN variety. Also, you might want to knock before entering that front door the kids left wide open; don't just barge (or fly) in. Oh yeah, and don't come if you don't know how to let yourself out. Banging against the skylight is not productive. I do appreciate that this visitor didn't poop on my furniture. In case your wondering, I appreciate that with all my visitors.