Dog walker and ABC-certified dog trainer Sarah DeMerle poses in front of Hayes Hall on the South Campus with her pack, (from left) Donnie, Teddy, Harold, Ricky, Seamus, Chanel, Maddie, Nala and Ash. Teddy and Harold are DeMerle's dogs and the rest are her clients. A former UB employee who now operates 716 Dog Pack, DeMerle says she's walked up to 16 dogs at a time, but learned that the ideal size for her pack walk is between eight and 10 dogs. Photo: Douglas Levere