What is it? What do we think of when the topic of straight pins comes to the fore?  Usually we think of those sharp little devils that find us when we’re not looking for them.  You know, the one that’s hidden in that quilt top that we’re folding (but is now in our finger) or perhaps the one that we dropped earlier in the day and is now lodged in our favorite pair of socks (that we’re still wearing) or maybe the one we forget to remove and hit with…