I voted "other".
Coming at this from a 1E prespective, I'd want to pull the chain, but I wouldn't just haul off and do it. First I'd try find traps or augury or clairvoyance spells. After all, maybe there is a trap there and the rogue blew his roll. If nothing like that is available, then I'd send a summoned monster to pull the chain, or use something like dreadwolf's method to pull it remotely.
Coming at this from a 1E prespective, I'd want to pull the chain, but I wouldn't just haul off and do it. First I'd try find traps or augury or clairvoyance spells. After all, maybe there is a trap there and the rogue blew his roll. If nothing like that is available, then I'd send a summoned monster to pull the chain, or use something like dreadwolf's method to pull it remotely.