O rings falling out!?

Hey guys.
I have spoken to a couple of people about this but wanted to pick your brains before deciding what to do.
The Gixxer has done 12000kms now, has had all of it's regular services (in fact also some in between.) I have always regularly cleaned the chain (with Motul Chain Clean) and lubed it (Motul Chain Lube.)
When I was cleaning it a couple of weeks ago I noticed one of the O-rings coming out of the chain. As yet it is only one that has come out. Has anyone seen this before? Is it common? What could cause it?
I have had three suggestions-
1. Ignore it- the life of the chain will be shortened, but it still has some life in it.
2. Get the dodgey link removed and the chain repaired.
3. Go to my good friend Mick and get that great deal on that hot new red chain that I soooo love.
What do you all think?
I have spoken to a couple of people about this but wanted to pick your brains before deciding what to do.
The Gixxer has done 12000kms now, has had all of it's regular services (in fact also some in between.) I have always regularly cleaned the chain (with Motul Chain Clean) and lubed it (Motul Chain Lube.)
When I was cleaning it a couple of weeks ago I noticed one of the O-rings coming out of the chain. As yet it is only one that has come out. Has anyone seen this before? Is it common? What could cause it?
I have had three suggestions-
1. Ignore it- the life of the chain will be shortened, but it still has some life in it.
2. Get the dodgey link removed and the chain repaired.
3. Go to my good friend Mick and get that great deal on that hot new red chain that I soooo love.
What do you all think?