Oscar, you can never have too many chain tools. At least that's my experience. So the little guy may have done you a favor!

I don't particularly mind unlinking a chain, though I usually just clean the chain in place on the bike. The Park chain tool makes it about as painless as it's going to be, when I do have to unlink--or decide it's just past high time I did so, for cleaning.

But I wish there was a way to mark the link so I'd unhook a different one the next time. Statistically, it's unlikely I'd go for the same link again, of course.

I tried red auto paint once but it wears off.