Supports were too strong for the snips

Hey Makers. bit of an odd occurrence here.

So I was removing the supports, nothing crazy pretty much just the basic settings for them, from part of a project I was working on and this happened. I saw something fly off but as the print was in black PLA I just assumed it was support material getting launched. When going in for the next cut I discovered that it was actually one of the blades of the snips.

It should be noted that these snips are many years old and have been used extensively.
So now I am curious if anyone else has had this happen to them.