Wow funny you mention that, changing out florescent bulbs on 12 foot ceiling had to put 8 ft ladder across two tables. The six ft ladder was behind and under it so the old saying don’t go under a ladder came to mind, said bs. So I climbed the 6 ft to get over to the 8 ft, fixed the lights and was coming down, crossed over to the 6 ladder, it wiggled, lost my balance and both me and ladders fell to the cement floor. Luckily I caught myself on the bandsaw to lessen the fall but the big ladder banged into the finished cabinet marking that up. Maybe I’ll not go under a ladder again, just saying!