For those of you unaware, people with autism can be very literal with their use of language and can have trouble understanding these kinds of informal uses of language (examples below).
For those of you unaware, and really if you've been paying attention, none of you should be unaware... I have a tendency to talk first and think second. These things just come out of my mouth before I give myself a chance to think about whether or not Child 1 is going to know what the hell I'm talking about or not. As a result I find myself having to do a lot of explaining, which would be totally unnecessary if only I could pay attention to myself. It's kind of annoying.
Me: Don't worry, dude, I've got your back
Child 1: What are you going to do to my back?
Me: Okay, guys, let's hit it!
Child 1: Hit what? Are you going to hit me?
Me: I'm afraid so.
Child 1: What are you afraid of?
Me: I beg to differ
Child 1 makes this face: