NBC May 28, 2015 9:30 am WATCH: Therapy Pigs Give Joy to Alzheimer's Patients A pair of miniature therapy pigs named Pumba and Boris are bringing joy to nursing home residents and hospital patients in Littleton, Colorado. US & World Videos 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 1:59 TikTok's Maddy Baloy dead at 26: Gordon Ramsay and Tay Lautner pay tribute 3:04 Progress being made on demolition of overpass on I-95 in Norwalk