An Idaho man snapped pictures of a bear attempting to get into his home through a cat door but only managing to fit its head through the opening.
Doug Harder of Sandpoint said bears have become a frequent nuisance at his condo this year and he first snapped photos of the animals when a mother and two cubs climbed onto his second floor deck to eat birdseed in late May.
He said bear sightings continued in the area and a yearling broke into his condo while he was on vacation last week by opening the sliding glass door, which he had left cracked open with a piece of wood blocking the doorjamb.
Harder said the intruder did very little damage to his property, but the animal defecated on the carpet and raided the domicile for food including flour, brownie mix, Toblerone and Pepsi.
The homeowner said he went to investigate a racket at his door Thursday and was shocked to see a bear attempting to squeeze through his cat door. He said the animal was far too large to fit more than its head through the door.
“It came to the cat door Thursday night, trying again and again to get through, which is when I took the photo,” Harder said…It came back yesterday trying to get through the cat door again.”
Time to get some bear spray. It won’t harm the bear; but, it will likely get the idea.
Eideard 
“Neighbors Mourn Victim of Rare Bear Attack : The woman, 93, was the first New Mexican killed by such an animal, but because of increased recent sightings, some fear she won’t be the last.” (2001) http://articles.latimes.com/2001/sep/09/local/me-43719 Note that personal defense sprays are not the same as bear spray. Although both types of sprays are made from oleoresin capsicum, it is the capsaicin and related capsaicinoids that are the active ingredients in bear spray. The EPA requires that bear sprays have a concentration of these ingredients between 1 and 2.0% and a minimum size of at least 7.9 ounces.
ANCHORAGE, Alaska (AP) — Authorities want to talk to a man who donned a fairly realistic bear costume — head and all — and wore it when harassing a mother bear and two cubs trying to feed on pink salmon in an Alaska river. http://www.denverpost.com/aurora/ci_28641093/man-bear-costume-harasses-mother-bear-2-cubs?obref=obinsite
American black bears may be able to recognize things they know in real life, such as pieces of food or humans, when looking at a photograph of the same thing. This is one of the findings of a study led by Zoe Johnson-Ulrich and Jennifer Vonk of Oakland University in the US, which involved a black bear called Migwan and a computer screen. The findings are published in Springer’s journal Animal Cognition. http://www.eurekalert.org/pub_releases/2016-07/s-bbl071416.php See also http://link.springer.com/article/10.1007/s10071-016-1011-4
“Lake Tahoe Is Fighting About Whether to Kill Iconic Fat Bear : Officials have received 150 calls about the 500 pound black bear in the last several months.” https://www.vice.com/en/article/4aw77j/lake-tahoe-is-fighting-about-whether-to-kill-iconic-fat-bear
“…Warmer winters are also contributing to bears ending up in backyards—they’re hibernating less if they do at all, instead spending all winter looking for people food. Wildfire seasons that destroy their natural food sources and habitats can also push bears to seek other food sources. In 2021, a woman was mauled inside her home in Lake Tahoe when a bear broke in as she was sleeping.”
Otus, the winner of the Katmai National Park Service’s 2016 Fat Bear Week tournament was estimated to weigh 1,000 pounds. https://www.vice.com/en/article/4xa7mb/heres-the-fattest-bear [also the winner of last year’s contest https://mymodernmet.com/fat-bear-week-2021-winner/ ]
The massive black bear, known as Hank the Tank and blamed for breaking and entering more than two dozen homes in California’s Lake Tahoe area, is no longer the sole suspect, according to officials.
Last week, officials said they believed Hank carried out 28 home invasions and extensively damaged 33 properties on his own. He was also blamed for breaking through a small window and somehow squeezing inside a house last Friday when no one was there.
https://www.cnn.com/2022/02/25/us/hank-the-tank-dna-evidence/index.html
“DNA Evidence Prompts Revised Response to Tahoe Keys Bear Incidents” California Department of Fish and Wildlife (Feb 24, 2022) https://wildlife.ca.gov/Conservation/Mammals/Black-Bear/Blog