You all know the people that, when a duty takes longer than expected, will fake disconnects.

Of course we cannot tell if the dc is fake or not, so SE cannot do anything on it but we, as the ones left in the duty, we still have an option: wait.

Yes, it will waste our time, but not so much, and when the dc player returns, remember to greet him/her with a warm "welcome back" to the duty they tried to skip.

Reactions there are priceless.