I'd at least give them a call.  This could be a problem that needs to be recalled.

You should be glad you didn't swallow that glass.  You coulda been in a world of hurt.

Having Mr. Peanut ripped off would get you some serious cash.  Try that.  [}:D]

Yup no damages.

-I would call 'em though, they'll do something for you as they WANT THE GLASS. That's how the dangerous stuff in food game is played. They will try and scam you out of the glass because once they have it you are screwed, they will claim that they need it for "scientific examination." so somesuch. I'd be very surprised if they didn't send an insurance adjuster type out to talk to you, or at least call you, to try and get the glass away from you. You could also rat 'em out to the FDA (I'd guess), just in case this is some weird problem at the nut factory.

Sometimes the company is cool and apologizes and gives you a gift certificate or some free stuff. Often they are skeptical (with good reason-I know of a case where a tooth was supposedly found in a chain restaurant's chili-except that they proved that it had been pulled by a dentist and apparently retrieved by the scammer) and can be jerks about it.

I ended up suing one of the big cereal companies years ago because after a client broke a tooth on stuff in cereal (long story but they admitted it was their fault-a problem with the cereal getting stuck in the oven and cooked 40+x until it was carbon) the cereal company offered the guy 1/2 the cost of the repair of the tooth, because his tooth "wasn't in that great of shape anyway" He got so pissed we ended up suing them and it cost them much more than the dental bill.

I'd bet you're looking at at least $ 20 worth of free peanuts here-enjoy and don't give up your little piece of glass to 'em without a fight.