Wondering what kind of worm it is.

I was walking past the table yesterday and spotted this big ugly worm trying to hide under some paper.  It was really a shock to see such a worm on the table that we eat off of, so hiding my fear, I gathered all my composure and strength and whopped it a good one with my bear hand.  Ouch!!  I think it stung me, then I saw its terrible stinging tail, or is it its head?  This is the most ugly and dangerous creepy critter that I ever saw.  Maybe I should get my gun!!  Na, that would make too much of mess and disturb my wife, who is always doing crafts of some kind; either painting, or crocheting, or weaving, or making things our of paper or other material.  She is quite the artist and is into many different things.

Then I realized that this "ugly worm" with the big stinger must be a tool for one of her projects, maybe a weaving project.  She has all kinds and sizes of looms, from quite large down to very small, and everything in between.  Now, don't tell her that I almost flattened one of her art project tools.  Actually, it hurt my hand more than I could hurt it.  Here is a picture so you can see how easily it is to confuse it with some creepy crawler:

So, what do you think?  What would you have done?  Of course being a big brave man like I am, I didn't bother to tell her I almost flattened one of her artistic tools; the prudent thing to do.  Now you all try to avoid all those weird looking critters out there and have yourself a great day, you hear?