McFlurry at Chicago airport

Today, I got a McFlurry with M&Ms at McDonald's here at Chicago airport during a wait for my flight to Boston. This cute elderly guy comes up after me and tries to order it as "give me what he has but plain". The cashier suggested an ice cream cone instead. He was quite pleased with that option, then procedes to tell me about his trip to Rome with his wife who as to use a wheelchair but can still get up to walk around (as she was presumably doing when he came up to the McDonal's counter with her empty wheelchair).