The Penobscot County Sheriff's Department is asking for the public's help locating an 89-year-old Glenburn man with dementia.

UPDATE: Robert Randall has been found safe. 

Robert Randall was last seen at 11:00 Wednesday morning at 19 Pineview Avenue in Glenburn. Officials say he is a white male, 5'5" tall, 140 pounds, with blonde hair and blue eyes, and he has scruffy gray facial hair. Mr. Randall was last seen wearing an army green jacket, light green shirt, and dark suspenders, blue jeans, and a blue hat that says VETERAN on it.

Randall suffers from dementia and is not physically well. Officials say he does not drive or have a cellphone. If approached, he may ask to be brought to Hollywood Slots in Bangor.

Anyone with information about Robert Randall's whereabouts is asked to call 911.

LOOK: Here Are 30 Foods That Are Poisonous to Dogs

To prepare yourself for a potential incident, always keep your vet's phone number handy, along with an after-hours clinic you can call in an emergency. The ASPCA Animal Poison Control Center also has a hotline you can call at (888) 426-4435 for advice.

Even with all of these resources, however, the best cure for food poisoning is preventing it in the first place. To give you an idea of what human foods can be dangerous, Stacker has put together a slideshow of 30 common foods to avoid. Take a look to see if there are any that surprise you.

More From WQCB Brewer Maine