I was once playing a low intelligence fighter and our group was running down a large spiraling staircase. We needed to reach the bottom ahead of the guys in front of us and so my fighter said "here, hold this" handed one end of a rope to a party member and lept off the edge of the staircase with the intention of landing on the next lower part of the spiral.

A few issues.
1)There was no railing or anything for party member to brace against.
1)Party member who had the rope was the low strength caster.
3)Party member rolled a 1.
Yanked them off the ledge with me because they didn't let go of rope.

It was a new DM and they panicked and didn't want me to die so some DM fiat had me land on ledge below and gave me the chance to make a check to catch the now falling caster.