My Tzitzit randomly picked up a blue thread

So, I got home from work and I was sitting down for dinner when I noticed this blue thread coming off my Tzitzit. It’s just a random piece of fluff/string from something, but I don’t know what! At first, I thought it was just stuck to my pants, but I realized that it was somehow wound up with end of the Tzitzit; I actually had to untangle it. Anyways, I thought it was interesting because of Numbers 15:38, so I thought I’d share here!