How about a party.
The group enters a cavern filled with giant mushrooms. Shriekers and Purples working in concert. Fortunately (or so the players think) there is a stream running through the cavern.
After starting to fight their way through the mushrooms, character 1 jumps into the river, in full armour. Proceeds to get drawn rapidly downstream by the current, but manages to grab onto something halfway through.
Character 2 sees this and jumps in to rescue the 1st character. Character 2 is also in full armour and gets swept right past character 1. Character manages to grab on to the lip of the exit tunnel and hangs on for dear life. Meanwhile some loose gear (read most of their rations iirc) gets swept out of the tunnel.
Character 3 sees all of this and decides to be smart and removes all of his gear, armour and clothes, so none of it can be washed away, and runs (because its faster than swimming) to character 2, so that character 2 can be rescued before loosing his grip. What character 3 did not count on was that the multitudes of purple mushrooms would be lashing his naked form the entire way. As I recall character fell unconscious shortly thereafter.
At this point character 4 got out his rope...
The moral of the story is that you should never run naked through the mushrooms.