I know better than to sew over pins,
To the untrained eye, it looks like I'm being a diligent machine owner and cleaning my machine after using it. Yeah, that beast gets duuuuusty. I wish I could say that this is why I have got everything dismantled. Alas, I ran over a pin and the unexpected happened....
See that? Yeah, the pin didn't break like one would expect it to, and nor did the needle....The damn thing sucked itself into the feed dogs and got itself crimped and stuck therein. You should have heard the noise. It was ugly. I think my roomate dang near jumped out of her skin, because there she was minding her own business, watching Futurama, and KA-CHING-CRUNCH - pin, meet feed dogs, they want to devour you.
So what is the moral of this story? You probably shouldn't run over your pins. Will I run over my pins again/still? You betcha. But I will change my needle and watch things a little more closely.
Somewhere out in the wild and weird world of the interwebs, there's a Quilt Police Officer taking down my number so they can smack me upside the head with a ruler.