Thread: Another Language Virus

I'm not sure I can discuss this in a gentlemanly fashion. I'm not sure I can even discuss it coherently.
Disclaimer: I do not speak perfect English.
I do see language as a live organism so to speak, constantly changing. This seems pretty normal to me, but occasionally, what I consider a virus infects the organism, you know, like, infects.
The latest one sends me into spit flying rage and SWMBO is sick of my rants. So I turn to my fellow gents to unload in the hope that someone knows what I am talking about.
Has anyone noticed the how the use of the word had has changed? Logically it's taken some time and now appears to be at critical mass.
Here is an example: Yesterday I had went home around 5:00. I have heard this across socio-economic lines, so let's not infuse the conversation with that one. Well, perhaps there is a cultural origin for this grammatical construction, but the point is that it is becoming widespread, at least to my defective ears.
I feel better now.