Relaying our experience with the inner house steps (the ones with the rubber treads). On a trip last year, either the treads were wet or my shoe sole was wet and my foot slipped beneath me on my way out of the coach. I believe my shoe slipped off the stair edge. I took a nasty fall on my butt (thankfully not my back) and slid down to the first outer step. I was heavily bruised and in pain for a week but thankfully nothing worse than that. I'm going to install traction tape strips like these
https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1 on the step treads and around each step edge next week to help prevent a future slip. Thought I'd pass this 'safety message' along to the community.