LOL! I think we can all relate! I am quite sure your optometrist will be able to just order you a replacement arm, especially since the glasses are new and there is not the possibility that the frame has been discontinued.

Years ago, I was bending down to put the dogs' bowls on the ground for them. My Whitney (now at the RB) rose up a little to look into the bowl and her head collided with my mouth. My two front teeth actually went numb for about a minute. My friend, a dental hygienist, told me that several years down the road I could very well need a root canal as the numbness means that the nerve was temporarily damaged. Now there's something for me to look forward to.