Oh, my goodness ...  

I discovered this yarn over hole in my sweater after I'd finished binding off the bottom hem.  I'd seen it a couple of times when I was trying on the sweater, but I thought it was just where I'd started a new skein of yarn and the ends weren't secured yet.

Really?!  It looks like I jacked up my knit stitch and yarn over'd at the same time.  See the stitch to the right of the yarn over?  It's twisted.  Boo hoo!

When I first started knitting, I would accidentally introduce yarn overs all the time.  It's such a strange mistake to have made ... (?)

When you knit into a yarn over, it's an increase.  I accidentally increased a stitch on the front of my sweater.  I'd feel a little better about the whole thing if it was on the back ... oh, well.

I undid the bind off until I got to this spot.  Then I "laddered" down to the yarn over and twisted it to close up the hole.  I also "laddered" down to the twisted knit stitch and fixed it.  It looks a little better.