Well, accidentally that is!
Jackman accidentally stabbed a stuntwoman as they filmed scenes for the first X-Men movie ever! Ouch!

As Jackman and Rebecca Romijn's stunt double filmed a scene where they have a fight sequence in the Statue of Liberty, Jackman accidentally stabbed her in the arm with the real metal talons on his hands that were actually used in the first movie!

This is what Jackman had to say about this incident:
"I went to stab her in the arm, which was part of the choreography, and she's meant to move her arm away and she forgot and the thing went right into her arm, like an inch.
"I was stunned. It was one of those things, it was so deep, there was a hole, there was no blood coming out and then like a minute later, it was like a geyser. I didn't faint and I thought she was going to freak out, but she just said, 'Yes! I have been stabbed by Wolverine!' Typical stuntwoman."

The dangerous and lethal prop was only used in one scene in the movie before it was discarded. Good thinking!