I have long speculated that Brad is slightly impervious to pain. He just doesn't seem to react to tactile input the way a typical child does.
The litmus test I use: taking a bath.
There are certain near-universal truths about typical children. One such truth is that toddlers become upset if they get soap in their eyes, even if it's "No More Tears." Not Brad. Since he was 18 months old, I've waited for him to express upset when I rinse his hair. Nothing. Just smiles and laughter. Sometimes I know soap is in his eyes. I look at him suspiciously. Just smiles.
And now, finally, it's happened: every time we rinse, he cries. Not that that's a good thing! Of course, I don't like to see Brad upset. But I can't help but wonder if one of those elusive neurological synapses is finally connecting. By my limited anecdotal experience, this usually happens closer to 18 months. Brad is three and a half. But this is me, not complaining. Better late than never.