I've been noticing the toothbrushes all together for several days now. At first I didn't think too much of it. Sunday night was the first night that I totally paid attention. It intrigued me.
So last night I decided to carefully watch the whole process. I also decided to mix it up a bit.
I put my toothbrush off to the "wrong" side.
Then I got the kids started brushing their teeth.
Dolly finished first and reached around her brother to put her brush away. When Dude was finished he reached over to put his toothbrush on the right side of the sink next to his sister's brush. Then he noticed where my toothbrush was. And then he stretched himself up on his tip-toes as far as he could possibly reach to put his toothbrush away.