It only seems obvious

Subtitled: Cause and Effect? What’s that got to do with Anything?

You can’t take your socks off if you’re standing in them.

I can’t open the door if you’re standing right in front of it.

If you feed all your Cheerios to the dogs, there will be none left for you.

Your shirt is wet because you (deliberately, ahem) poured your water down yourself.

If you want to be in your highchair, you have to let go of my knees.

How many gazillion times a day do YOU say something like this?