OSHA Standard 29 CFR 1910.141 (g) states, "No employee shall be allowed to consume food or beverages in a toilet room nor in any area exposed to a toxic material."
"No food or beverages shall be stored in toilet rooms or in an area exposed to a toxic material."
In a veterinary hospital, most medical and animal areas -including refrigerators used for vaccines or lab samples- are considered hazardous.