Hriston
Dungeon Master of Middle-earth (He/him)
As with any situation where there's a mismatch between players about what's included in the fiction, I would pause play to get on the same page with the player by accepting their character was wearing gloves and that therefore the skin on their hands hasn't been exposed to the poison. Then, I would describe the result of the character having touched the chest without asking for a saving throw.The situation as described doesn't say, only that whatever it was, the PC touched the poisoned chest. Feel free to fill in the player's intentions if you think it will help illustrate your position.