Ask yourself what your immediate reaction is when you encounter someone with a disability:
Pity - "I'm glad I am not them." or "I can't imagine living like that."
Inspiration - "It's amazing what they've overcome."
Opportunity - "How can I engage with this individual?" or "How can this individual engage with my organization as an employee, a customer, a member, or a supporter?"
Our culture creates bias towards the first two reactions. The key to helping your organization become accessible and grow through outreach to people with disabilities, is to be aware of that unconscious bias and move your perception and reaction towards the third.
If you are planning an event, designate and advertise locations where service dogs can relieve themselves. This event set up convenient locations with bags and trash cans.