on the one hand, other people should respect your shit.
On the other hand, you should know better. I'm usually against victim blaming, but if the scissors that are the easiest to find are your fancy expensive ones, then what did you expect.
The best way to protect your fabric scissors is to ensure that other scissors are more easily available to the idiots who'd wreck yours without a second thought. This also means keeping track of the shitty tools you never use because they exist purely to keep others away from your good shit.
I've been on the receiving end of this, and I've learned from it. I like candles, and have lived with potheads most of my adult life. Lighters go missing faster than I can buy them. Now i keep an electric lighter that can't be used for smoking but can be used as a taser.