What is this sign supposed to mean? It's on the lighter.

May be something related to child resistant packaging. From the CPSC FAQ on the Poison Prevention Packaging ACT "For a package to be child-resistant, at least 85% of tested children must not be able to open the package during the first 5 minutes of the test".https://www.cpsc.gov/FAQ/PPPA

The bad news is your home is gone and your child with it in the massive flameball. The good news is, while we can’t quite say your kid was gifted…
There is considerable overlap between the intelligence of the smartest bears and the dumbest tourists (in reference to why the Yosemite garbage cans are difficult to use)
- Worked in Yellowstone.
  
  The bears are smarter than the majority of tourists.
  
  Humans, being able to read and having signs posted in multiple languages for them, choose to ignore the various hazards and blunder through them.
  
  Bears, only rarely, if ever, find themselves in trouble with natural features. And they can't read the warning signs.
I remember my wife asking our kid to open some "child-proof" packaging for her.

Ah, the classic sad onion.

85% sad onion. Secured.
- You guys are way off, that's mostly TinTin on lockdown.
Came here for the Ashens reference and was not disappointed.

I believe it is indicating that the child lock is only 85% effective.

How the hell they arrived at that number we may never know, but I'll bet you it's buried on page 4,987,253 in clause 6, subsection 8 of European Union Product Safety Report 156.421a. Or something.

They just had a hundred babies try to pick the lock. Most of 'em couldn't do it.
- ... but those 15. We've gotta put them on some sort of watchlist.
85% of the time, it works every time

It means this product was made with 85% child slavery

85% of the child laborers who made this product were unable to escape.

Tintin in jail 85% of the time?

BILLIONS OF BLISTERING BLUE BARNACLES!!!
- Got it, captain Haddock!
He's lucky he didn't get the electric chair for what he did.
- There's no death sentence in France
  
  Edit: oops he's Belgian. But still.

A guess? 85% childproof.

85% baby in every lock

Could be 85% alcohol and to keep locked away from children

That baby icon clearly doesn't like fire very much. Or maybe it's mourning that it only has a 15%, per attempt, at stealing fire from the gods.

Where did you find this? What is the graphic to the left?

I don't think it's related, but there is a brand of sewing/embrodery machines called Baby Lock (as in smaller, home use version of an industrial overlocker sewing machine). Its logo is just the words Baby Lock inside an oval, nothing with babies or locks.