"Evil But Not a Genius"

I have a brother J. who is 15. Some of you have known him since he was about 3. And if you know me or him at all, then you know that he tends to say really, really funny things. He also tends to do funny things. He has a way with words, sometimes a tendency to misuse words, that has been a source of amusement for me since he started talking. Here's an example:

About 4 years ago, when our niece E. was a baby, E. arrived at my parents' home wearing a winter time hat. It was a silly little hat, but she looked cute. And here was J.'s analysis. . .

"Hey, in that hat, don't you think like E. looks like she could be one of Santa's minions. You know, evil but not a genius."

Oddly, I think he's used the expression "Evil but not a genius" about my dog Guinevere.