Pathfinder 1E porcupine, dire. quills. do they stack?

[Uber Dungeon]

So that's the question. When a porcupine hits with it's tail it lodges 1d6 quills in the flesh of said target.
Then the description continues to state that A lodged quill imposes a –1 circumstance penalty to attacks, saves, and checks.
Does this mean that if I rolled that there are 6 quills lodged in said creature that it would take a -6 to those rolls or do they not stack?

 

[Crothian]

I think they stack. Having six giant quills in me will certainly hinder me more then just having one.

 

[Uber Dungeon]

In that case it seems to me that a family of porcupine would totally screw whoever does combat with them.

 

[delericho]

I would agree they stack.

However, I also wouldn't stack them indefinitely - each time the creature hits I would roll d6 and if the result is higher than the previous number of lodged quills then I would replace that number with the new one. So the maximum penalty that could be suffered would be -6 - still high, but not quite so disasterous.

 

[Mishihari Lord]

Stacking dire porcupines would probably make them pretty mad. I would advise against it. Not even a good area for experimentation.

 

[Grazzt]

So that's the question. When a porcupine hits with it's tail it lodges 1d6 quills in the flesh of said target.
Then the description continues to state that A lodged quill imposes a –1 circumstance penalty to attacks, saves, and checks.
Does this mean that if I rolled that there are 6 quills lodged in said creature that it would take a -6 to those rolls or do they not stack?

Is this the dire porcupine from the Tome of Horrors book? If so, then yes. They stack.

Edit: And honestly, that monster needs to be updated/re-converted. I'd probably rework it based off the Medium sized Giant Porcupine (appears in Bestiary 3) and maybe give it a ranged quill attack (like the original giant porcupine in 2e).

 

[Hand of Evil]

Stack! You just do not mess with porcupines.

 

[Starfox]

Porcupines winter i haystacks...