Spamming the incompetent way

Bwa ha ha. I just got a lovely piece of spam in my inbox from someone trying to convince me that the IRS needed all my tax information via email in order to get my tax return properly filed. Yeah, I'm probably not dumb enough to fall for that anyway. But I was even less likely to fall for it when I noted that the moron who sent it thinks IRS stands for "Internal Revenue Source."