Ah, I see. Confession time. I doctor the eyes in every icon I make - because otherwise when you shrink them the eyes disappear, and especially when they're already the tiny size of a shrew like in the case of Mr Barratt's. I usually add a spot of highlight to the pupils, and that makes them *ping*. That might have tipped it over the edge here. Here's the original pic. I got it from some website or newsgroup.
Actually, now I come to look at it, I didn't even need to give him eyeball highlights here. His eyes are freakishly big, aren't they? Like he's been abusing the eyedrops.