Just now, as we were getting out of the car, Nate said, "Mom, you're being stalked by invisible hobos!"
And really, that makes a lot of sense to me. Clearly, something or someone is following behind me making messes while I clean. And if I were invisible, I just might dent a bumper to try and get some attention. Naturally, an army of invisible hobos could give me that sense of overwhelming dread I've been experiencing lately. Frankly, I like the hobos! Think of all the things I can blame on them.
In all seriousness (and I say that tongue-in-cheek since Nate is involved), my son doesn't have an invisible friend. Rather, he has spent all day talking to Bob the Invisible Hobo and Bob's family (mom, brother, I don't know who else).