…You go somewhere you’ve been literally hundreds of times over the years and discover they’ve made what you’re pretty convinced they thought were cosmetic changes (and possibly for safety) and in the process have screwed up their access.
…you get to listen to five minutes of someone else’s mobile phone conversation. Because apparently the new place to have private conversations on your phone is the disabled loo. The look on their face when they realised they’d kept a wheelchair user waiting and that I’d heard most of her conversation was priceless.
…you ask someone about access for something they’re planning and also double check it yourself just to be on the safe side.