Sure, the root cause of this action really was an accident. 100% user error, clear.
But this is the story:
User tried to attach some pictures under bad network conditions, then he wants to cancel this operation and then (I don’t have all details) chat has been deleted (two years of conversation!). There has been a question for deleting (yes), but I think it was not clear in that moment for the user that not the pictures are deleted but the chat itself!!!
To mitigate that situation maybe a full red dialog should be presented and a second clear confirmation is necessary. Any idea welcome.
Even an undo period (good idea) would be welcome.