This subject has been on TM in the past, for pre-CX models, often relating to boarding ferries.
On my 20+ year old 4/4, it has rarely been an issue, if suitable caution is maintained.
However, everyone can get caught out!
In my case it was on a steep left hand bend, with the luggage rack loaded, on a trip to Northern Spain.
Scrape! Now part of the patina!

Bud
4/4 - Stanley


Bud
4/4 "Stanley"