Yeah, I'm pretty good at conveniently "forgetting" to buy replacement crush washers. Be this for the sump plug, banjo bolts on brake lines, or just about any other bolt I undo... so far no issues... but most of them haven't been in an atrocious state. The worst I've noted came from my sisters brake calipers on her car but they appear to be holding still...
Edit: I am in no way suggesting you shouldn't replace themĀ :lol
Edit: I am in no way suggesting you shouldn't replace themĀ :lol